repo stringclasses 1k
values | file_url stringlengths 96 373 | file_path stringlengths 11 294 | content stringlengths 0 32.8k | language stringclasses 1
value | license stringclasses 6
values | commit_sha stringclasses 1k
values | retrieved_at stringdate 2026-01-04 14:45:56 2026-01-04 18:30:23 | truncated bool 2
classes |
|---|---|---|---|---|---|---|---|---|
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P105_RecordAndEmbeddables/src/main/java/com/bookstore/service/BookstoreService.java | Chapter04/P105_RecordAndEmbeddables/src/main/java/com/bookstore/service/BookstoreService.java | package com.bookstore.service;
import com.bookstore.dto.AuthorDto;
import java.util.List;
import com.bookstore.repository.AuthorRepository;
import org.springframework.stereotype.Service;
@Service
public class BookstoreService {
private final AuthorRepository authorRepository;
public BookstoreService(AuthorR... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P105_RecordAndEmbeddables/src/main/java/com/bookstore/repository/AuthorRepository.java | Chapter04/P105_RecordAndEmbeddables/src/main/java/com/bookstore/repository/AuthorRepository.java | package com.bookstore.repository;
import com.bookstore.dto.AuthorDto;
import java.util.List;
import com.bookstore.entity.Author;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
@Repository
... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P105_RecordAndEmbeddables/src/main/java/com/bookstore/entity/Author.java | Chapter04/P105_RecordAndEmbeddables/src/main/java/com/bookstore/entity/Author.java | package com.bookstore.entity;
import com.bookstore.embeddable.Contact;
import jakarta.persistence.Embedded;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import java.io.Serializable;
@Entity
public class Author i... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P105_RecordAndEmbeddables/src/main/java/com/bookstore/embeddable/Contact.java | Chapter04/P105_RecordAndEmbeddables/src/main/java/com/bookstore/embeddable/Contact.java | package com.bookstore.embeddable;
import jakarta.persistence.Embeddable;
@Embeddable
public record Contact(String email, String twitter, String phone) {}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P94_RecordSerialization/src/main/java/modern/challenge/MelonRecord.java | Chapter04/P94_RecordSerialization/src/main/java/modern/challenge/MelonRecord.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public record MelonRecord(String type, float weight) implements Serializable {
public MelonRecord {
Objects.requireNonNull(type, "The melon's type cannot be null");
if (weight < 1000 || weight > 10000) {... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P94_RecordSerialization/src/main/java/modern/challenge/Melon.java | Chapter04/P94_RecordSerialization/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
Objects.requireNonNull(type, "The melon's type cannot be null");... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P94_RecordSerialization/src/main/java/modern/challenge/MelonContainer.java | Chapter04/P94_RecordSerialization/src/main/java/modern/challenge/MelonContainer.java | package modern.challenge;
import java.io.Serializable;
import java.time.LocalDate;
import java.util.Objects;
public class MelonContainer implements Serializable {
private final LocalDate expiration;
private final String batch;
private final Melon melon;
public MelonContainer(LocalDate expiration, St... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P94_RecordSerialization/src/main/java/modern/challenge/Main.java | Chapter04/P94_RecordSerialization/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.time.LocalDate;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundExcep... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P94_RecordSerialization/src/main/java/modern/challenge/MelonContainerRecord.java | Chapter04/P94_RecordSerialization/src/main/java/modern/challenge/MelonContainerRecord.java | package modern.challenge;
import java.io.Serializable;
import java.time.LocalDate;
import java.util.Objects;
public record MelonContainerRecord(LocalDate expiration, String batch, Melon melon) implements Serializable {
public MelonContainerRecord {
Objects.requireNonNull(expiration, "The expiration da... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P88_SimpleRecord/src/main/java/modern/challenge/MelonRecord.java | Chapter04/P88_SimpleRecord/src/main/java/modern/challenge/MelonRecord.java | package modern.challenge;
public record MelonRecord(String type, float weight) {}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P88_SimpleRecord/src/main/java/modern/challenge/Melon.java | Chapter04/P88_SimpleRecord/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.util.Objects;
public class Melon {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String getType() {
return type;
}
public fl... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter04/P88_SimpleRecord/src/main/java/modern/challenge/Main.java | Chapter04/P88_SimpleRecord/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
Melon melon1 = new Melon("Cantaloupe", 2600);
MelonRecord melon2 = new MelonRecord("Cantaloupe", 2600);
MelonRecord melon3 = new MelonRecord("Cantaloupe", 2600);
System.out.println(melo... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P135_PatternBasedStreamSpecificFilter/src/main/java/modern/challenge/Melon.java | Chapter06/P135_PatternBasedStreamSpecificFilter/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P135_PatternBasedStreamSpecificFilter/src/main/java/modern/challenge/Main.java | Chapter06/P135_PatternBasedStreamSpecificFilter/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.io.ObjectInputFilter;
import java.util.Arrays;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
/* create a pattern-based filter and set it for a specific stream */
Object... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P135_PatternBasedStreamSpecificFilter/src/main/java/modern/challenge/Converters.java | Chapter06/P135_PatternBasedStreamSpecificFilter/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputFilter;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Filters.java | Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Filters.java | package modern.challenge;
import java.io.ObjectInputFilter;
public final class Filters {
private Filters() {
throw new AssertionError("Cannot be instantiated");
}
public static ObjectInputFilter allowMelonFilter() {
ObjectInputFilter filter = ObjectInputFilter.allowFilter( ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Muskmelon.java | Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Muskmelon.java | package modern.challenge;
import java.io.Serializable;
public class Muskmelon extends Melon implements Serializable {
public Muskmelon(String type, float weight) {
super(type, weight);
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Melon.java | Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/HoneyDew.java | Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/HoneyDew.java | package modern.challenge;
import java.io.Serializable;
public class HoneyDew extends Muskmelon implements Serializable {
public HoneyDew(String type, float weight) {
super(type, weight);
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Pumpkin.java | Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Pumpkin.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Pumpkin implements Serializable {
private final String type;
private final float weight;
public Pumpkin(String type, float weight) {
this.type = type;
this.weight = weight;
}
public Str... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/MelonFilterFactory.java | Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/MelonFilterFactory.java | package modern.challenge;
import java.io.ObjectInputFilter;
import java.util.function.BinaryOperator;
public class MelonFilterFactory implements BinaryOperator<ObjectInputFilter> {
@Override
public ObjectInputFilter apply(ObjectInputFilter current, ObjectInputFilter next) {
System.out.printl... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Persian.java | Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Persian.java | package modern.challenge;
import java.io.Serializable;
public class Persian extends Muskmelon implements Serializable {
public Persian(String type, float weight) {
super(type, weight);
}
} | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Cantaloupe.java | Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Cantaloupe.java | package modern.challenge;
import java.io.Serializable;
public class Cantaloupe extends Melon implements Serializable {
public Cantaloupe(String type, float weight) {
super(type, weight);
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Main.java | Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.io.ObjectInputFilter;
import java.util.Arrays;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
// Set a filter factory
MelonFilterFactory filterFactory = new MelonFilterFactor... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Converters.java | Chapter06/P142_JDK17CustomFilterFactory/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputFilter;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Filters.java | Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Filters.java | package modern.challenge;
import java.io.ObjectInputFilter;
public final class Filters {
private Filters() {
throw new AssertionError("Cannot be instantiated");
}
public static ObjectInputFilter allowMelonFilter() {
ObjectInputFilter filter = ObjectInputFilter.allowFilter(
... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Muskmelon.java | Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Muskmelon.java | package modern.challenge;
import java.io.Serializable;
public class Muskmelon extends Melon implements Serializable {
public Muskmelon(String type, float weight) {
super(type, weight);
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Melon.java | Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/HoneyDew.java | Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/HoneyDew.java | package modern.challenge;
import java.io.Serializable;
public class HoneyDew extends Muskmelon implements Serializable {
public HoneyDew(String type, float weight) {
super(type, weight);
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Pumpkin.java | Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Pumpkin.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Pumpkin implements Serializable {
private final String type;
private final float weight;
public Pumpkin(String type, float weight) {
this.type = type;
this.weight = weight;
}
public Str... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Persian.java | Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Persian.java | package modern.challenge;
import java.io.Serializable;
public class Persian extends Muskmelon implements Serializable {
public Persian(String type, float weight) {
super(type, weight);
}
} | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Cantaloupe.java | Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Cantaloupe.java | package modern.challenge;
import java.io.Serializable;
public class Cantaloupe extends Melon implements Serializable {
public Cantaloupe(String type, float weight) {
super(type, weight);
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Main.java | Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.util.Arrays;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
Pumpkin pumpkin = new Pumpkin("Pumpkin", 2000);
Melon melon = new Melon("Melon", 2400);
Muskmelon... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Converters.java | Chapter06/P141_JDK17CustomFilter/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputFilter;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P132_ObjectToStringSer/src/main/java/modern/challenge/Melon.java | Chapter06/P132_ObjectToStringSer/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P132_ObjectToStringSer/src/main/java/modern/challenge/Main.java | Chapter06/P132_ObjectToStringSer/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
Melon melon = new Melon("Gac", 2500);
String melonSer = Converters.objectToString(melon);
System.out.prin... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P132_ObjectToStringSer/src/main/java/modern/challenge/Converters.java | Chapter06/P132_ObjectToStringSer/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Base64;
public final class Converters {
private Converters() {
... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P136_CustomClassFilter/src/main/java/modern/challenge/MelonFilter.java | Chapter06/P136_CustomClassFilter/src/main/java/modern/challenge/MelonFilter.java | package modern.challenge;
import java.io.ObjectInputFilter;
import java.io.ObjectInputFilter.FilterInfo;
import java.io.ObjectInputFilter.Status;
public final class MelonFilter implements ObjectInputFilter {
@Override
public Status checkInput(FilterInfo filterInfo) {
Class<?> clazz = filterInfo.seri... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P136_CustomClassFilter/src/main/java/modern/challenge/Melon.java | Chapter06/P136_CustomClassFilter/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P136_CustomClassFilter/src/main/java/modern/challenge/Main.java | Chapter06/P136_CustomClassFilter/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.io.ObjectInputFilter;
import java.util.Arrays;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
/* create a custom class filter and set it for all the streams of this application ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P136_CustomClassFilter/src/main/java/modern/challenge/Converters.java | Chapter06/P136_CustomClassFilter/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputFilter;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P140_DeserializationDoS/src/main/java/modern/challenge/Main.java | Chapter06/P140_DeserializationDoS/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.io.ObjectInputFilter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
ArrayList<Object> startList = new Ar... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P140_DeserializationDoS/src/main/java/modern/challenge/Converters.java | Chapter06/P140_DeserializationDoS/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputFilter;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P133_ObjectToXML/src/main/java/modern/challenge/Melon.java | Chapter06/P133_ObjectToXML/src/main/java/modern/challenge/Melon.java | package modern.challenge;
// import java.io.Serializable;
import java.util.Objects;
public class Melon { //implements Serializable { // this is optional
private String type;
private float weight;
// this is needed for XMLEncoder and XmlMapper
public Melon() {}
public Melon(String type, flo... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P133_ObjectToXML/src/main/java/modern/challenge/Main.java | Chapter06/P133_ObjectToXML/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
public class Main {
public static void main(String[] args) throws IOException {
Melon melon = new Melon("Gac", 2500);
System.out.println();
// use XMLEncoder/XMLDecoder
System.out.println();
String melonSerXM... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P133_ObjectToXML/src/main/java/modern/challenge/Converters.java | Chapter06/P133_ObjectToXML/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;
import java.beans.XMLDecoder;
import java.beans.XMLEncoder;
import java.io.BufferedOutputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P143_MonitoringDeserializationJfr/src/main/java/modern/challenge/Melon.java | Chapter06/P143_MonitoringDeserializationJfr/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P143_MonitoringDeserializationJfr/src/main/java/modern/challenge/Main.java | Chapter06/P143_MonitoringDeserializationJfr/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.util.Arrays;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
Melon melon = new Melon("Gac", 2500);
byte[] melonSer = Converters.objectToBytes(melon); ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P143_MonitoringDeserializationJfr/src/main/java/modern/challenge/Converters.java | Chapter06/P143_MonitoringDeserializationJfr/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters {
private Converters() {
... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P135_PatternBasedStreamGlobalFilter/src/main/java/modern/challenge/Melon.java | Chapter06/P135_PatternBasedStreamGlobalFilter/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P135_PatternBasedStreamGlobalFilter/src/main/java/modern/challenge/Main.java | Chapter06/P135_PatternBasedStreamGlobalFilter/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.io.ObjectInputFilter;
import java.util.Arrays;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
/* create a pattern-based filter and set it for all the streams of this application... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P135_PatternBasedStreamGlobalFilter/src/main/java/modern/challenge/Converters.java | Chapter06/P135_PatternBasedStreamGlobalFilter/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters {
private Converters() {
... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P139_DeserializationStackOverflowError/src/main/java/modern/challenge/Main.java | Chapter06/P139_DeserializationStackOverflowError/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.io.ObjectInputFilter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
// 'm... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P139_DeserializationStackOverflowError/src/main/java/modern/challenge/Converters.java | Chapter06/P139_DeserializationStackOverflowError/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputFilter;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P138_CustomLambdaFilter/src/main/java/modern/challenge/Melon.java | Chapter06/P138_CustomLambdaFilter/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P138_CustomLambdaFilter/src/main/java/modern/challenge/Main.java | Chapter06/P138_CustomLambdaFilter/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.io.ObjectInputFilter.Status;
import java.util.Arrays;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
/* create a custom lambda filter and set it for all the streams of this applicat... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P138_CustomLambdaFilter/src/main/java/modern/challenge/Converters.java | Chapter06/P138_CustomLambdaFilter/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputFilter;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter1/src/main/java/modern/challenge/Filters.java | Chapter06/P137_CustomMethodFilter1/src/main/java/modern/challenge/Filters.java | package modern.challenge;
import java.io.ObjectInputFilter;
import java.io.ObjectInputFilter.FilterInfo;
import java.io.ObjectInputFilter.Status;
public final class Filters {
private Filters() {
throw new AssertionError("Cannot be instantiated");
}
public static ObjectInputFilter.Status melonFil... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter1/src/main/java/modern/challenge/Melon.java | Chapter06/P137_CustomMethodFilter1/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter1/src/main/java/modern/challenge/Main.java | Chapter06/P137_CustomMethodFilter1/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.util.Arrays;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
/* create a custom method filter and set it for all the streams of this application */
// ObjectInputFilter.C... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter1/src/main/java/modern/challenge/Converters.java | Chapter06/P137_CustomMethodFilter1/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputFilter;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Muskmelons.java | Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Muskmelons.java | package modern.challenge;
import java.io.Serializable;
public class Muskmelons extends Melon implements Serializable {
public Muskmelons(String type, float weight) {
super(type, weight);
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Filters.java | Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Filters.java | package modern.challenge;
import java.io.ObjectInputFilter;
import java.io.ObjectInputFilter.FilterInfo;
import java.io.ObjectInputFilter.Status;
public final class Filters {
private Filters() {
throw new AssertionError("Cannot be instantiated");
}
public static ObjectInputFilter.Status melonFil... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Melon.java | Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Pumpkin.java | Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Pumpkin.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Pumpkin implements Serializable {
private final String type;
private final float weight;
public Pumpkin(String type, float weight) {
this.type = type;
this.weight = weight;
}
public Str... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Cantaloupe.java | Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Cantaloupe.java | package modern.challenge;
import java.io.Serializable;
public class Cantaloupe extends Melon implements Serializable {
public Cantaloupe(String type, float weight) {
super(type, weight);
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Main.java | Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.io.ObjectInputFilter;
import java.util.Arrays;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
/* create a custom method filter and set it for all the streams of this app... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Converters.java | Chapter06/P137_CustomMethodFilter2/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters {
private Converters() {
... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P131_ObjectToByteArraySer/src/main/java/modern/challenge/Melon.java | Chapter06/P131_ObjectToByteArraySer/src/main/java/modern/challenge/Melon.java | package modern.challenge;
import java.io.Serializable;
import java.util.Objects;
public class Melon implements Serializable {
private final String type;
private final float weight;
public Melon(String type, float weight) {
this.type = type;
this.weight = weight;
}
public String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P131_ObjectToByteArraySer/src/main/java/modern/challenge/Main.java | Chapter06/P131_ObjectToByteArraySer/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.util.Arrays;
import org.apache.commons.lang3.SerializationUtils;
public class Main {
public static void main(String[] args) throws IOException, ClassNotFoundException {
Melon melon = new Melon("Gac", 2500);
byte[]... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter06/P131_ObjectToByteArraySer/src/main/java/modern/challenge/Converters.java | Chapter06/P131_ObjectToByteArraySer/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public final class Converters {
private Converters() {
... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/PaymentService.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/PaymentService.java | package modern.challenge;
public class PaymentService {
class InvoiceCalculation {
final PaymentService paymentService;
InvoiceCalculation(PaymentService PaymentService.this) {
paymentService = PaymentService.this;
}
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Delivered.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Delivered.java | package modern.challenge;
import java.lang.annotation.ElementType;
import java.lang.annotation.Target;
@Target(ElementType.TYPE_USE)
public @interface Delivered {}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Person.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Person.java | package modern.challenge;
public class Person {
// public String getAddress() { return ""; }
// public String getAddress(Person this) { return ""; } // These two methods are semantically the same
public String getAddress(Person this, String prevAddr) { return ""; } // These two methods are semant... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/ValidAddress.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/ValidAddress.java | package modern.challenge;
import java.lang.annotation.ElementType;
import java.lang.annotation.Target;
@Target(ElementType.TYPE_USE)
public @interface ValidAddress {}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Cashed.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Cashed.java | package modern.challenge;
import java.lang.annotation.ElementType;
import java.lang.annotation.Target;
@Target(ElementType.TYPE_USE)
public @interface Cashed {}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Truck.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Truck.java | package modern.challenge;
public class Truck {
public void revision1(Truck this) {
Truck thisTruck = this;
System.out.println("Truck: " + thisTruck);
}
public void revision2() {
Truck thisTruck = this;
System.out.println("Truck: " + thisTruck);
... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Parcel.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Parcel.java | package modern.challenge;
public class Parcel {
public void order(@New Parcel this) {}
public void shipping(@Ordered Parcel this) {}
public void deliver(@Shipped Parcel this) {}
public void cashit(@Delivered Parcel this) {}
public void done(@Cashed Parcel this) {}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Ordered.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Ordered.java | package modern.challenge;
import java.lang.annotation.ElementType;
import java.lang.annotation.Target;
@Target(ElementType.TYPE_USE)
public @interface Ordered {}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Main.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
Truck truck = new Truck();
truck.revision1();
truck.revision2();
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Shipped.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/Shipped.java | package modern.challenge;
import java.lang.annotation.ElementType;
import java.lang.annotation.Target;
@Target(ElementType.TYPE_USE)
public @interface Shipped {}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/New.java | Chapter02/P49_ReceiverParameter/src/main/java/modern/challenge/New.java | package modern.challenge;
import java.lang.annotation.ElementType;
import java.lang.annotation.Target;
@Target(ElementType.TYPE_USE)
public @interface New {}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P52_Common5NPE/src/main/java/modern/challenge/ChainSaw.java | Chapter02/P52_Common5NPE/src/main/java/modern/challenge/ChainSaw.java | package modern.challenge;
import java.util.List;
public final class ChainSaw {
private static final List<String> MODELS
= List.of("T300", "T450", "T700", "T800", "T900");
private final String model;
private final String power;
private final int speed;
public boolean started;
pr... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P52_Common5NPE/src/main/java/modern/challenge/Main.java | Chapter02/P52_Common5NPE/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
// 1 - NPE when calling an instance method via a null object
ChainSaw cs = ChainSaw.initChainSaw("QW-T650"); // 'cs' is null
cs.start();
// 2 - NPE when accessing (or, modifying) field ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P64_GuardedPatternsSwitch1JDK17/src/main/java/modern/challenge/House.java | Chapter02/P64_GuardedPatternsSwitch1JDK17/src/main/java/modern/challenge/House.java | package modern.challenge;
class Heater {}
class Stove extends Heater {}
class Chimney extends Heater {
private final boolean electric;
public Chimney(boolean electric) {
this.electric = electric;
}
public boolean isElectric() {
return electric;
}
}
public class House {
priv... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P39_CheckIndexSubRangeZeroLength/src/main/java/modern/challenge/Pipes.java | Chapter02/P39_CheckIndexSubRangeZeroLength/src/main/java/modern/challenge/Pipes.java | package modern.challenge;
import java.util.Objects;
public final class Pipes {
private Pipes() {
throw new AssertionError("Cannot be instantiated");
}
public static boolean isPressureSupportedV1(int avgPresure, int unitsOfPressure, int maxPressure) {
if(avgPresure < 0 ||... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P39_CheckIndexSubRangeZeroLength/src/main/java/modern/challenge/NumberConverter.java | Chapter02/P39_CheckIndexSubRangeZeroLength/src/main/java/modern/challenge/NumberConverter.java | package modern.challenge;
import java.util.Objects;
public final class NumberConverter {
private NumberConverter() {
throw new AssertionError("Cannot be instantiated");
}
public static int toLeIntV1(byte[] arr, int offset) {
if (offset < 0
|| Integer.BYTES < 0 //... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P39_CheckIndexSubRangeZeroLength/src/main/java/modern/challenge/Main.java | Chapter02/P39_CheckIndexSubRangeZeroLength/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.math.BigInteger;
public class Main {
public static void main(String[] args) throws IOException {
boolean result1 = Pipes.isPressureSupportedV1(2, 5, 8);
boolean result2 = Pipes.isPressureSupportedV2(2, 5, 12);
... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P45_InnerClassesAndStatics/src/main/java/modern/challenge/NewConnection.java | Chapter02/P45_InnerClassesAndStatics/src/main/java/modern/challenge/NewConnection.java | package modern.challenge;
public class NewConnection { // singleton
private NewConnection() {
}
public static NewConnection get() {
class LazyConnection { // holder
static final NewConnection INSTANCE = new NewConnection();
static {
System.out.println("I... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P45_InnerClassesAndStatics/src/main/java/modern/challenge/Main.java | Chapter02/P45_InnerClassesAndStatics/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
A a = new A();
A.B b1 = a.new B();
A.B b2 = a.new B();
A.B b3 = a.new B();
System.out.println();
OldConnection oldConn1 = OldConnection.get();
OldConnect... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P45_InnerClassesAndStatics/src/main/java/modern/challenge/OldConnection.java | Chapter02/P45_InnerClassesAndStatics/src/main/java/modern/challenge/OldConnection.java | package modern.challenge;
public class OldConnection { // singleton
private OldConnection() {
}
private static class LazyConnection { // holder
static final OldConnection INSTANCE = new OldConnection();
static {
System.out.println("Initializing old connection ..." + INSTANCE... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P45_InnerClassesAndStatics/src/main/java/modern/challenge/A.java | Chapter02/P45_InnerClassesAndStatics/src/main/java/modern/challenge/A.java | package modern.challenge;
public class A {
public class B {
{
System.out.println("Non-static initializer ...");
}
static {
System.out.println("Static initializer ...");
}
}
}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P38_Emoji/src/main/java/modern/challenge/Charsets.java | Chapter02/P38_Emoji/src/main/java/modern/challenge/Charsets.java | package modern.challenge;
import java.util.List;
import java.util.regex.Pattern;
import static java.util.stream.Collectors.toList;
import java.util.stream.IntStream;
public class Charsets {
private Charsets() {
throw new AssertionError("Cannot be instantiated");
}
public static boolean containsE... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P38_Emoji/src/main/java/modern/challenge/Main.java | Chapter02/P38_Emoji/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.util.List;
public class Main {
public static final String STR_NO_EMOJI = "?I love you so much!";
public static final String STR_WITH_EMOJI = "๐ I love ๐ you ำ so much ๐ ๐ ๐ผ๐ผ๐ผ!";
public static void main(String[] args) {
System.out.println(Charsets.con... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P64_GuardedPatternsSwitch2/src/main/java/modern/challenge/Assess.java | Chapter02/P64_GuardedPatternsSwitch2/src/main/java/modern/challenge/Assess.java | package modern.challenge;
import static modern.challenge.FuelType.GASOLINE;
import static modern.challenge.FuelType.HYDROGEN;
import static modern.challenge.FuelType.KEROSENE;
enum FuelType { GASOLINE, HYDROGEN, KEROSENE }
class Vehicle {
private final int gallon;
private final FuelType fuel;
publi... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P59_BindingVariableScopeInstanceof/src/main/java/modern/challenge/Usb.java | Chapter02/P59_BindingVariableScopeInstanceof/src/main/java/modern/challenge/Usb.java | package modern.challenge;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
public class Usb {
public static String save(Object o) throws IOException {
// 'file' is created ONLY if 'instanceof' returns true
if (o i... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P51_CommonStringMistake/src/main/java/modern/challenge/Main.java | Chapter02/P51_CommonStringMistake/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
String str = "start";
str = stopItWrong(str);
System.out.println("Stop it (wrong): " + str);
str = stopItGood1(str); // or, stopItGood2(str)
System.out.println("Stop it... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P56_ClassicInstanceof/src/main/java/modern/challenge/Main.java | Chapter02/P56_ClassicInstanceof/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.util.ArrayList;
import java.util.List;
public class Main {
interface Furniture {};
static class Plywood {};
static class Wardrobe extends Plywood implements Furniture {};
public static void main(String[] args) {
Wardrobe wardrobe = new Wardrobe();
... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P65_TypePatternSwitchDominance/src/main/java/modern/challenge/Main.java | Chapter02/P65_TypePatternSwitchDominance/src/main/java/modern/challenge/Main.java |
package modern.challenge;
import java.util.Arrays;
import static modern.challenge.Main.Hero.HULK;
import static modern.challenge.Main.Hero.IRON_MAN;
public class Main {
static abstract class Pill {}
static class Nurofen extends Pill {}
static class Ibuprofen extends Pill {}
static clas... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
PacktPublishing/Java-Coding-Problems-Second-Edition | https://github.com/PacktPublishing/Java-Coding-Problems-Second-Edition/blob/47b7c834407a607580baf8e3a23c1c24c24b8bc0/Chapter02/P52_WorkingAroundNPE/src/main/java/modern/challenge/ChainSaw.java | Chapter02/P52_WorkingAroundNPE/src/main/java/modern/challenge/ChainSaw.java | package modern.challenge;
import java.util.List;
public final class ChainSaw {
private static final String UNKNOWN_POWER = "UNKNOWN";
private static final List<String> MODELS
= List.of("T300", "T450", "T700", "T800", "T900");
private final String model;
private final String ... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.