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
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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/Chapter02/P52_WorkingAroundNPE/src/main/java/modern/challenge/Main.java | Chapter02/P52_WorkingAroundNPE/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
// 1 - Fix: NPE when calling an instance method via a null object
// ChainSaw cs = ChainSaw.initChainSaw("QW-T650"); // we get an UnsupportedOperationException
// cs.start(); // this code is not execute... | 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/P66_CompletenessInSwitchJDK21/src/main/java/modern/challenge/Main.java | Chapter02/P66_CompletenessInSwitchJDK21/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.util.Arrays;
public class Main {
final static class PlayerClub implements Sport {};
private enum PlayerTypes implements Sport { TENNIS, FOOTBALL, SNOOKER }
sealed interface Sport permits PlayerTypes, PlayerClub {};
// JDK 20
/*
... | 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_GuardedPatternsSwitch2JDK17/src/main/java/modern/challenge/Assess.java | Chapter02/P64_GuardedPatternsSwitch2JDK17/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/P38_StringToBinaryEncodings/src/main/java/modern/challenge/Charsets.java | Chapter02/P38_StringToBinaryEncodings/src/main/java/modern/challenge/Charsets.java | package modern.challenge;
import java.nio.charset.Charset;
public class Charsets {
private Charsets() {
throw new AssertionError("Cannot be instantiated");
}
public static String stringToBinaryEncoding(String str, String encoding) {
if (str == null) {
throw new IllegalArgume... | 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_StringToBinaryEncodings/src/main/java/modern/challenge/Main.java | Chapter02/P38_StringToBinaryEncodings/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
public class Main {
public static final String LETTER = "A";
public static final String CHINESE = "暗";
public static final String EMOJI = "😍";
public static final String STR = "😍 I love 💕 you Ӝ so much ... | 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_ReadingWritingFileUTF8/src/main/java/modern/challenge/Main.java | Chapter02/P38_ReadingWritingFileUTF8/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
public cl... | 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/P48_XlintDefaultConstructor/src/main/java/module-info.java | Chapter02/P48_XlintDefaultConstructor/src/main/java/module-info.java | module P48_XlintDefaultConstructor {
exports modern.challenge;
}
| 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/P48_XlintDefaultConstructor/src/main/java/modern/challenge/House.java | Chapter02/P48_XlintDefaultConstructor/src/main/java/modern/challenge/House.java | package modern.challenge;
public class House {
private String location;
private float price;
public String getLocation() {
return location;
}
public void setLocation(String location) {
this.location = location;
}
public float getPrice() {
return price;
}
... | 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/P48_XlintDefaultConstructor/src/main/java/modern/challenge/Main.java | Chapter02/P48_XlintDefaultConstructor/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
House house = new House();
house.setLocation("NY, 23");
house.setPrice(100_000);
}
}
| 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/P47_ErasureBridge/src/main/java/modern/challenge/Puzzle.java | Chapter02/P47_ErasureBridge/src/main/java/modern/challenge/Puzzle.java | package modern.challenge;
public class Puzzle<E> {
public E piece;
public Puzzle(E piece) {
this.piece = piece;
}
public void setPiece(E piece) {
this.piece = piece;
}
}
| 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/P47_ErasureBridge/src/main/java/modern/challenge/FunPuzzle.java | Chapter02/P47_ErasureBridge/src/main/java/modern/challenge/FunPuzzle.java | package modern.challenge;
public class FunPuzzle extends Puzzle<String> {
public FunPuzzle(String piece) {
super(piece);
}
@Override
public void setPiece(String piece) {
super.setPiece(piece);
}
}
| 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/P47_ErasureBridge/src/main/java/modern/challenge/Main.java | Chapter02/P47_ErasureBridge/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
FunPuzzle fp = new FunPuzzle("head");
Puzzle p = fp; // Compiler throws an unchecked warning (raw type)
p.setPiece(5); // ClassCastException
}
}
| 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/P55_EqualOperatorVsEquals/src/main/java/modern/challenge/Main.java | Chapter02/P55_EqualOperatorVsEquals/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class Main {
public static void main(String[] args) {
Integer x1 = 14;
Integer y1 = 14;
System.out.println(x1 == y1); // true
System.out.println(x1.e... | 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/P40_StringIndentity/src/main/java/modern/challenge/MyPoint.java | Chapter02/P40_StringIndentity/src/main/java/modern/challenge/MyPoint.java | package modern.challenge;
public class MyPoint {
private final int x;
private final int y;
private final int z;
public MyPoint(int x, int y, int z) {
this.x = x;
this.y = y;
this.z = z;
}
public int getX() {
return x;
}
public int getY() {
... | 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/P40_StringIndentity/src/main/java/modern/challenge/Main.java | Chapter02/P40_StringIndentity/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.util.Objects;
public class Main {
public static void main(String[] args) throws IOException {
MyPoint p = new MyPoint(1, 2, 3);
System.out.println("Objects.toIdentityString(): "
+ Objects.toI... | 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/P44_ByteToHexString/src/main/java/modern/challenge/Main.java | Chapter02/P44_ByteToHexString/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 {
byte v = -125;
byte[] varr = new byte[]{-3, 0, 12, 11, -5, 123};
String s = "fd000c0bfb7b";
System.out.println("Convert ... | 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/P44_ByteToHexString/src/main/java/modern/challenge/Converters.java | Chapter02/P44_ByteToHexString/src/main/java/modern/challenge/Converters.java | package modern.challenge;
import java.math.BigInteger;
import java.util.HexFormat;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
public final class Converters {
private Converters() {
throw new AssertionError("Cannot be instantiated");
}
public static String byteToHexStr... | 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/P46_AnonymousClassesAndStatics/src/main/java/modern/challenge/Printer.java | Chapter02/P46_AnonymousClassesAndStatics/src/main/java/modern/challenge/Printer.java | package modern.challenge;
public interface Printer {
public void print(String quality);
}
| 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/P46_AnonymousClassesAndStatics/src/main/java/modern/challenge/Main.java | Chapter02/P46_AnonymousClassesAndStatics/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
printerTest();
}
public static void printerTest() {
// before JDK 16
/*
Printer printer = new Printer() {
@Override
public void print(String qu... | 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/P47_ErasureGeneric/src/main/java/modern/challenge/Main.java | Chapter02/P47_ErasureGeneric/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.util.ArrayList;
import java.util.List;
public class Main {
public static void main(String[] args) {
List<Object> list = listOf(1, "one");
System.out.println(list);
}
public static <T, R extends T> List<T> listOf(T t, R r) {
... | 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/P50_ImmutableStack/src/main/java/modern/challenge/ImmutableStack.java | Chapter02/P50_ImmutableStack/src/main/java/modern/challenge/ImmutableStack.java | package modern.challenge;
import java.util.Iterator;
public class ImmutableStack<E> implements Stack<E> {
private final E head;
private final Stack<E> tail;
private ImmutableStack(final E head, final Stack<E> tail) {
this.head = head;
this.tail = tail;
}
public static <U> Stack<... | 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/P50_ImmutableStack/src/main/java/modern/challenge/Stack.java | Chapter02/P50_ImmutableStack/src/main/java/modern/challenge/Stack.java | package modern.challenge;
public interface Stack<T> extends Iterable<T> {
boolean isEmpty();
Stack<T> push(T value);
Stack<T> pop();
T peek();
}
| 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/P50_ImmutableStack/src/main/java/modern/challenge/Main.java | Chapter02/P50_ImmutableStack/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.util.Iterator;
public class Main {
public static void main(String[] args) {
Stack<String> s1 = ImmutableStack.empty(String.class);
Stack<String> s2 = s1.push("Hello");
Stack<String> s3 = s2.push("Immutable");
Stack<String> s4 = s2.push("Stac... | 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/P66_CompletenessInSwitchJDK20/src/main/java/modern/challenge/Main.java | Chapter02/P66_CompletenessInSwitchJDK20/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.lang.constant.ClassDesc;
import java.lang.constant.ConstantDesc;
import java.lang.constant.DynamicConstantDesc;
import java.lang.constant.MethodHandleDesc;
import java.lang.constant.MethodTypeDesc;
import java.nio.CharBuffer;
import java.util.Arrays;
import javax.swing.text.Segmen... | 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/P60_RewritingEqualsTypePatternInstanceof/src/main/java/modern/challenge/MyPointGenericOld.java | Chapter02/P60_RewritingEqualsTypePatternInstanceof/src/main/java/modern/challenge/MyPointGenericOld.java | package modern.challenge;
import java.util.Objects;
public final class MyPointGenericOld<E> {
private final E x;
private final E y;
private final E z;
public MyPointGenericOld(E x, E y, E z) {
this.x = x;
this.y = y;
this.z = z;
}
@Override
public int hashCod... | 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/P60_RewritingEqualsTypePatternInstanceof/src/main/java/modern/challenge/MyPointGenericNew.java | Chapter02/P60_RewritingEqualsTypePatternInstanceof/src/main/java/modern/challenge/MyPointGenericNew.java | package modern.challenge;
import java.util.Objects;
public final class MyPointGenericNew<E> {
private final E x;
private final E y;
private final E z;
public MyPointGenericNew(E x, E y, E z) {
this.x = x;
this.y = y;
this.z = z;
}
@Override
public int hashCod... | 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/P60_RewritingEqualsTypePatternInstanceof/src/main/java/modern/challenge/MyPointOld.java | Chapter02/P60_RewritingEqualsTypePatternInstanceof/src/main/java/modern/challenge/MyPointOld.java | package modern.challenge;
public final class MyPointOld {
private final int x;
private final int y;
private final int z;
public MyPointOld(int x, int y, int z) {
this.x = x;
this.y = y;
this.z = z;
}
@Override
public int hashCode() {
int hash = 3;
... | 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/P60_RewritingEqualsTypePatternInstanceof/src/main/java/modern/challenge/MyPointNew.java | Chapter02/P60_RewritingEqualsTypePatternInstanceof/src/main/java/modern/challenge/MyPointNew.java | package modern.challenge;
public final class MyPointNew {
private final int x;
private final int y;
private final int z;
public MyPointNew(int x, int y, int z) {
this.x = x;
this.y = y;
this.z = z;
}
@Override
public int hashCode() {
int hash = 3;
... | 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/P60_RewritingEqualsTypePatternInstanceof/src/main/java/modern/challenge/Main.java | Chapter02/P60_RewritingEqualsTypePatternInstanceof/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
int x1 = 2, y1 = 3, z1 = 1;
int x2 = 5, y2 = 0, z2 = 1;
Integer xg1 = Integer.valueOf(2), yg1 = Integer.valueOf(3), zg1 = Integer.valueOf(1);
Integer xg2 = Integer.valueOf(5), yg2 = Int... | 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_GuardedPatternsSwitch1/src/main/java/modern/challenge/House.java | Chapter02/P64_GuardedPatternsSwitch1/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/P67_UnconditionalPatterns/src/main/java/modern/challenge/Main.java | Chapter02/P67_UnconditionalPatterns/src/main/java/modern/challenge/Main.java | package modern.challenge;
class Vehicle {
public String start() { return "started"; }
public String stop() { return "stopped"; }
}
class Truck extends Vehicle {}
class Van extends Vehicle {}
public class Main {
private static String drive(Vehicle v) {
return switch (v) {
case Truck... | 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/P53_YieldStatementBlocks/src/main/java/modern/challenge/SnookerPlayer.java | Chapter02/P53_YieldStatementBlocks/src/main/java/modern/challenge/SnookerPlayer.java | package modern.challenge;
public class SnookerPlayer extends Player {
}
| 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/P53_YieldStatementBlocks/src/main/java/modern/challenge/FootballPlayer.java | Chapter02/P53_YieldStatementBlocks/src/main/java/modern/challenge/FootballPlayer.java | package modern.challenge;
public class FootballPlayer extends Player {
}
| 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/P53_YieldStatementBlocks/src/main/java/modern/challenge/Player.java | Chapter02/P53_YieldStatementBlocks/src/main/java/modern/challenge/Player.java | package modern.challenge;
public class Player {
}
| 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/P53_YieldStatementBlocks/src/main/java/modern/challenge/Main.java | Chapter02/P53_YieldStatementBlocks/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public enum PlayerTypes {
TENNIS,
FOOTBALL,
SNOOKER
}
public static void main(String[] args) {
Player player = createPlayer(PlayerTypes.SNOOKER);
}
private static Player createPlayer(PlayerTypes playerType) {
... | 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/P53_YieldStatementBlocks/src/main/java/modern/challenge/TennisPlayer.java | Chapter02/P53_YieldStatementBlocks/src/main/java/modern/challenge/TennisPlayer.java | package modern.challenge;
public class TennisPlayer extends Player{
}
| 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/P53_YieldStatementBlocks/src/main/java/modern/challenge/UnknownPlayerException.java | Chapter02/P53_YieldStatementBlocks/src/main/java/modern/challenge/UnknownPlayerException.java | package modern.challenge;
public class UnknownPlayerException extends RuntimeException {
private static final long serialVersionUID = 1L;
public UnknownPlayerException() {
super();
}
public UnknownPlayerException(String message) {
super(message);
}
public UnknownPlayerExcept... | 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/P47_ErasureVsOverloading/src/main/java/modern/challenge/Main.java | Chapter02/P47_ErasureVsOverloading/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.util.List;
public class Main {
public static void main(String[] args) {
new Main().print(List.of(new A(), new A()));
new Main().print(List.of(new B(), new B()));
}
void print(List<A> listOfA, Void... v) {
System.out.println... | 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/P47_ErasureVsOverloading/src/main/java/modern/challenge/A.java | Chapter02/P47_ErasureVsOverloading/src/main/java/modern/challenge/A.java | package modern.challenge;
public class A {}
| 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/P47_ErasureVsOverloading/src/main/java/modern/challenge/B.java | Chapter02/P47_ErasureVsOverloading/src/main/java/modern/challenge/B.java | package modern.challenge;
public class B {}
| 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/P47_PolymorphicOverloading/src/main/java/modern/challenge/Main.java | Chapter02/P47_PolymorphicOverloading/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.File;
public class Main {
static String wordie = "";
public static void main(String[] args) {
kaboom(1); // c
kaboom(1, 2, 3); // q
kaboom(1d); // f
kaboom((short) 1); ... | 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/P42_SnippetsInJavadocPreJDK18/src/main/java/modern/challenge/Telemeter.java | Chapter02/P42_SnippetsInJavadocPreJDK18/src/main/java/modern/challenge/Telemeter.java | package modern.challenge;
import java.awt.Point;
/**
* A telemeter with laser ranging from 0 to 60 ft including calculation of
* surfaces and volumes with high-precision
*
* <pre>{@code
* Telemeter.Calibrate.at(0.00001);
* Telemeter telemeter = new Telemeter(0.15, 2, "IP54");
* }</pre>
*/
public class... | 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/P42_SnippetsInJavadocPreJDK18/src/main/java/modern/challenge/Main.java | Chapter02/P42_SnippetsInJavadocPreJDK18/src/main/java/modern/challenge/Main.java | package modern.challenge;
/**
*
* Main class
*
* <pre>{@code
* Telemeter.Calibrate.at(0.00001, "HIGH");
*
* Point sp = new Point(12, 56);
* Point ep = new Point(43, 45);
*
* Telemeter telemeter = new Telemeter(0.15, 2, "IP54");
*
* int d = telemeter.distance(sp, ep, true);
* }<... | 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/P41_UnamedClassesMain/src/main/java/HelloWorld.java | Chapter02/P41_UnamedClassesMain/src/main/java/HelloWorld.java | void main() {
System.out.println("Hello World!");
} | 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/P58_TypePatternMatchingInstanceof/src/main/java/modern/challenge/Usb.java | Chapter02/P58_TypePatternMatchingInstanceof/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 saveOld(Object o) throws IOException {
if (o instanceof File) {
File file = (File) o;
... | 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/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/SnookerPlayer.java | Chapter02/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/SnookerPlayer.java | package modern.challenge;
public class SnookerPlayer extends Player {
}
| 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/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/FootballPlayer.java | Chapter02/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/FootballPlayer.java | package modern.challenge;
public class FootballPlayer extends Player {
}
| 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/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/Player.java | Chapter02/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/Player.java | package modern.challenge;
public class Player {
}
| 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/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/Main.java | Chapter02/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public enum PlayerTypes {
TENNIS,
FOOTBALL,
SNOOKER,
UNKNOWN
}
public static void main(String[] args) {
createPlayerNoNullCheck(PlayerTypes.TENNIS);
createPlayerNoNullCheck(null);
createPlayerNullCheck... | 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/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/TennisPlayer.java | Chapter02/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/TennisPlayer.java | package modern.challenge;
public class TennisPlayer extends Player{
}
| 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/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/UnknownPlayerException.java | Chapter02/P54_CaseNullClauseInSwitch/src/main/java/modern/challenge/UnknownPlayerException.java | package modern.challenge;
public class UnknownPlayerException extends RuntimeException {
private static final long serialVersionUID = 1L;
public UnknownPlayerException() {
super();
}
public UnknownPlayerException(String message) {
super(message);
}
public UnknownPlayerExcept... | 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/P61_TypePatternInstanceofGenerics/src/main/java/modern/challenge/Main.java | Chapter02/P61_TypePatternInstanceofGenerics/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.util.EnumMap;
import java.util.Map;
public class Main {
enum Status {
DRAFT, READY
}
static class Book {
public void review() { System.out.println("reviewing ..."); };
public void print() { System.out.println("printing .... | 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/P43_InvokeDefaultMethodsJDK8/src/main/java/modern/challenge/Book.java | Chapter02/P43_InvokeDefaultMethodsJDK8/src/main/java/modern/challenge/Book.java | package modern.challenge;
public interface Book extends Printable {
}
| 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/P43_InvokeDefaultMethodsJDK8/src/main/java/modern/challenge/Draft.java | Chapter02/P43_InvokeDefaultMethodsJDK8/src/main/java/modern/challenge/Draft.java | package modern.challenge;
public interface Draft extends Writable {
@Override
default void write(String draft) {
System.out.println("Draft: Writing in draft: " + draft);
}
}
| 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/P43_InvokeDefaultMethodsJDK8/src/main/java/modern/challenge/Main.java | Chapter02/P43_InvokeDefaultMethodsJDK8/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.lang.invoke.MethodHandles.Lookup;
import java.lang.invoke.MethodType;
import java.lang.reflect.Constructor;
import java.lang.reflect.Proxy;
public class Main {
public static void main(String[] args) {
// invoke Printable.print(String doc)
System.out.println(... | 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/P43_InvokeDefaultMethodsJDK8/src/main/java/modern/challenge/Printable.java | Chapter02/P43_InvokeDefaultMethodsJDK8/src/main/java/modern/challenge/Printable.java | package modern.challenge;
public interface Printable {
default void setup() {
System.out.println("Printable: Setup the printer");
}
default void print(String doc) {
System.out.println("Printable: Printing the document: " + doc);
}
}
| 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/P43_InvokeDefaultMethodsJDK8/src/main/java/modern/challenge/Writable.java | Chapter02/P43_InvokeDefaultMethodsJDK8/src/main/java/modern/challenge/Writable.java | package modern.challenge;
public interface Writable {
default void setup() {
System.out.println("Writable: Setup the editor");
}
default void write(String doc) {
System.out.println("Writable: Writing in document: " + doc);
}
}
| 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/P62_TypePatternInstanceofStream/src/main/java/modern/challenge/Main.java | Chapter02/P62_TypePatternInstanceofStream/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
interface Engine {}
class HypersonicEngine implements Engine {} // not implemented
class HighSpeedEngine implements Engine {} // not implemented
class RegularEngine implements Engine {
private final int max... | 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/P43_InvokeDefaultMethodsJDK9/src/main/java/modern/challenge/Book.java | Chapter02/P43_InvokeDefaultMethodsJDK9/src/main/java/modern/challenge/Book.java | package modern.challenge;
public interface Book extends Printable {
}
| 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/P43_InvokeDefaultMethodsJDK9/src/main/java/modern/challenge/Draft.java | Chapter02/P43_InvokeDefaultMethodsJDK9/src/main/java/modern/challenge/Draft.java | package modern.challenge;
public interface Draft extends Writable {
@Override
default void write(String draft) {
System.out.println("Draft: Writing in draft: " + draft);
}
}
| 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/P43_InvokeDefaultMethodsJDK9/src/main/java/modern/challenge/Main.java | Chapter02/P43_InvokeDefaultMethodsJDK9/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.lang.reflect.Proxy;
public class Main {
public static void main(String[] args) {
// invoke Printable.print(String doc)
System.out.println("Invoke Printable.print(String doc):");
... | 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/P43_InvokeDefaultMethodsJDK9/src/main/java/modern/challenge/Printable.java | Chapter02/P43_InvokeDefaultMethodsJDK9/src/main/java/modern/challenge/Printable.java | package modern.challenge;
public interface Printable {
default void setup() {
System.out.println("Printable: Setup the printer");
}
default void print(String doc) {
System.out.println("Printable: Printing the document: " + doc);
}
}
| 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/P43_InvokeDefaultMethodsJDK9/src/main/java/modern/challenge/Writable.java | Chapter02/P43_InvokeDefaultMethodsJDK9/src/main/java/modern/challenge/Writable.java | package modern.challenge;
public interface Writable {
default void setup() {
System.out.println("Writable: Setup the editor");
}
default void write(String doc) {
System.out.println("Writable: Writing in document: " + doc);
}
}
| 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/P42_SnippetsInJavadoc/src/main/java/modern/challenge/Telemeter.java | Chapter02/P42_SnippetsInJavadoc/src/main/java/modern/challenge/Telemeter.java | package modern.challenge;
import java.awt.Point;
/**
* A telemeter with laser ranging from 0 to 60 ft including calculation of
* surfaces and volumes with high-precision
*
* {@snippet lang="java" :
* Telemeter.Calibrate.at(0.00001); // @link substring="Calibrate" target="Calibrate#at(double, 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/Chapter02/P42_SnippetsInJavadoc/src/main/java/modern/challenge/Main.java | Chapter02/P42_SnippetsInJavadoc/src/main/java/modern/challenge/Main.java | package modern.challenge;
/**
*
* Main class
*
* {@snippet file = MainSnippet.txt region=sample}
*/
public class Main {
/**
* Default constructor
*/
public Main() {}
/**
* The main() method
*
* @param args command line arguments
*/
public static void ma... | 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/P42_SnippetsInJavadoc/src/snippet-src/DistanceSnippet.java | Chapter02/P42_SnippetsInJavadoc/src/snippet-src/DistanceSnippet.java | Point sp = new Point(12, 56);
Point ep = new Point(43, 45);
int d = telementer.distance(sp, ep, true); | 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/P43_InvokeDefaultMethodsJDK16/src/main/java/modern/challenge/Book.java | Chapter02/P43_InvokeDefaultMethodsJDK16/src/main/java/modern/challenge/Book.java | package modern.challenge;
public interface Book extends Printable {
}
| 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/P43_InvokeDefaultMethodsJDK16/src/main/java/modern/challenge/Draft.java | Chapter02/P43_InvokeDefaultMethodsJDK16/src/main/java/modern/challenge/Draft.java | package modern.challenge;
public interface Draft extends Writable {
@Override
default void write(String draft) {
System.out.println("Draft: Writing in draft: " + draft);
}
}
| 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/P43_InvokeDefaultMethodsJDK16/src/main/java/modern/challenge/Main.java | Chapter02/P43_InvokeDefaultMethodsJDK16/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
public class Main {
public static void main(String[] args) {
// invoke Printable.print(String doc)
System.out.println("Invoke Printable.print(String doc):");
... | 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/P43_InvokeDefaultMethodsJDK16/src/main/java/modern/challenge/Printable.java | Chapter02/P43_InvokeDefaultMethodsJDK16/src/main/java/modern/challenge/Printable.java | package modern.challenge;
public interface Printable {
default void setup() {
System.out.println("Printable: Setup the printer");
}
default void print(String doc) {
System.out.println("Printable: Printing the document: " + doc);
}
}
| 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/P43_InvokeDefaultMethodsJDK16/src/main/java/modern/challenge/Writable.java | Chapter02/P43_InvokeDefaultMethodsJDK16/src/main/java/modern/challenge/Writable.java | package modern.challenge;
public interface Writable {
default void setup() {
System.out.println("Writable: Setup the editor");
}
default void write(String doc) {
System.out.println("Writable: Writing in document: " + doc);
}
}
| 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_AsciiVsUnicode/src/main/java/modern/challenge/Charsets.java | Chapter02/P38_AsciiVsUnicode/src/main/java/modern/challenge/Charsets.java | package modern.challenge;
import java.util.stream.Collectors;
public class Charsets {
private Charsets() {
throw new AssertionError("Cannot be instantiated");
}
public static String strToBinary(String str) {
if (str == null) {
throw new IllegalArgumentException("The given 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/Chapter02/P38_AsciiVsUnicode/src/main/java/modern/challenge/Main.java | Chapter02/P38_AsciiVsUnicode/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
public class Main {
public static final String LETTER = "A";
public static final String CHINESE = "暗";
public static final String EMOJI = "😍";
public static final String STR = "😍 I love 💕 you Ӝ so much 💕 😍 🎼🎼🎼!";
public static void mai... | 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/P67_UnconditionalPatternsJDK17/src/main/java/modern/challenge/Main.java | Chapter02/P67_UnconditionalPatternsJDK17/src/main/java/modern/challenge/Main.java | package modern.challenge;
class Vehicle {
public String start() { return "started"; }
public String stop() { return "stopped"; }
}
class Truck extends Vehicle {}
class Van extends Vehicle {}
public class Main {
private static String drive(Vehicle v) {
return switch (v) {
... | 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/P47_ErasureHeapPollution/src/main/java/modern/challenge/Main.java | Chapter02/P47_ErasureHeapPollution/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class Main {
public static void main(String[] args) {
List<Integer> ints = new ArrayList<>();
Main.listOf(ints, 1, 2, 3);
Main.listsOfYeak(ints);
}
// @SuppressW... | 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/P53_YieldSwitchExpression/src/main/java/modern/challenge/SnookerPlayer.java | Chapter02/P53_YieldSwitchExpression/src/main/java/modern/challenge/SnookerPlayer.java | package modern.challenge;
public class SnookerPlayer extends Player {
}
| 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/P53_YieldSwitchExpression/src/main/java/modern/challenge/FootballPlayer.java | Chapter02/P53_YieldSwitchExpression/src/main/java/modern/challenge/FootballPlayer.java | package modern.challenge;
public class FootballPlayer extends Player {
}
| 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/P53_YieldSwitchExpression/src/main/java/modern/challenge/Player.java | Chapter02/P53_YieldSwitchExpression/src/main/java/modern/challenge/Player.java | package modern.challenge;
public class Player {
}
| 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/P53_YieldSwitchExpression/src/main/java/modern/challenge/Main.java | Chapter02/P53_YieldSwitchExpression/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public enum PlayerTypes {
TENNIS,
FOOTBALL,
SNOOKER,
UNKNOWN
}
public static void main(String[] args) {
// switch statement
Player playerSwitchStatementUgly = createPlayerSwitchStatementUgly(PlayerTypes.TENNIS);... | 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/P53_YieldSwitchExpression/src/main/java/modern/challenge/TennisPlayer.java | Chapter02/P53_YieldSwitchExpression/src/main/java/modern/challenge/TennisPlayer.java | package modern.challenge;
public class TennisPlayer extends Player{
}
| 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/P53_YieldSwitchExpression/src/main/java/modern/challenge/UnknownPlayerException.java | Chapter02/P53_YieldSwitchExpression/src/main/java/modern/challenge/UnknownPlayerException.java | package modern.challenge;
public class UnknownPlayerException extends RuntimeException {
private static final long serialVersionUID = 1L;
public UnknownPlayerException() {
super();
}
public UnknownPlayerException(String message) {
super(message);
}
public UnknownPlayerExcept... | 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/P63_TypePatternMatchingSwitch/src/main/java/modern/challenge/Usb.java | Chapter02/P63_TypePatternMatchingSwitch/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 {
return switch(o) {
case File file -> "Saving a file of si... | 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/Chapter13/P272_ProgrammaticSWSAdaptRequest/src/main/java/modern/challenge/Main.java | Chapter13/P272_ProgrammaticSWSAdaptRequest/src/main/java/modern/challenge/Main.java | package modern.challenge;
import com.sun.net.httpserver.Filter;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
import com.sun.net.httpserver.SimpleFileServer;
import java.io.IOException;
import static java.lang.System.out;
import java.net.InetSocketAddress;
import java.nio.file.Pa... | 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/Chapter13/P274_SWSInMemoryFileSystem/src/main/java/modern/challenge/Main.java | Chapter13/P274_SWSInMemoryFileSystem/src/main/java/modern/challenge/Main.java | package modern.challenge;
import com.google.common.collect.ImmutableList;
import com.google.common.jimfs.Configuration;
import com.google.common.jimfs.Jimfs;
import com.sun.net.httpserver.HttpServer;
import com.sun.net.httpserver.SimpleFileServer;
import com.sun.net.httpserver.SimpleFileServer.OutputLevel;
import java... | 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/Chapter13/P271_ProgrammaticSWSFileHandler/src/main/java/modern/challenge/Main.java | Chapter13/P271_ProgrammaticSWSFileHandler/src/main/java/modern/challenge/Main.java | package modern.challenge;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
import com.sun.net.httpserver.SimpleFileServer;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.file.Path;
public class Main {
public static void main(String[] args) thro... | 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/Chapter13/P262_NonBlockingEchoServer/src/main/java/modern/challenge/Main.java | Chapter13/P262_NonBlockingEchoServer/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.StandardSocketOptions;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
imp... | 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/Chapter13/P271_ProgrammaticSWSExecutor/src/main/java/modern/challenge/Main.java | Chapter13/P271_ProgrammaticSWSExecutor/src/main/java/modern/challenge/Main.java | package modern.challenge;
import com.sun.net.httpserver.HttpServer;
import com.sun.net.httpserver.SimpleFileServer;
import com.sun.net.httpserver.SimpleFileServer.OutputLevel;
import java.net.InetSocketAddress;
import java.nio.file.Path;
import java.util.concurrent.Executors;
public class Main {
public static vo... | 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/Chapter13/P267_BlockingEchoServerKEM/src/main/java/modern/challenge/Main.java | Chapter13/P267_BlockingEchoServerKEM/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.nio.charset.Charset;
import java.security.InvalidKeyException;
import jav... | 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/Chapter13/P275_SWSZipFileSystem/src/main/java/modern/challenge/Main.java | Chapter13/P275_SWSZipFileSystem/src/main/java/modern/challenge/Main.java | package modern.challenge;
import com.sun.net.httpserver.HttpServer;
import com.sun.net.httpserver.SimpleFileServer;
import com.sun.net.httpserver.SimpleFileServer.OutputLevel;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.n... | 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/Chapter13/P263_ConnectedClient/src/main/java/modern/challenge/Main.java | Chapter13/P263_ConnectedClient/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.StandardProtocolFamily;
import java.nio.channels.DatagramChannel;
import java.net.StandardSocketOptions;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.char... | 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/Chapter13/P261_BlockingEchoServer/src/main/java/modern/challenge/Main.java | Chapter13/P261_BlockingEchoServer/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.StandardSocketOptions;
import java.nio.ByteBuffer;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
public class Main {
private static final int SERVER_PORT = 4444;
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/Chapter13/P263_ConnectionlessClient/src/main/java/modern/challenge/Main.java | Chapter13/P263_ConnectionlessClient/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.StandardProtocolFamily;
import java.nio.channels.DatagramChannel;
import java.net.StandardSocketOptions;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.char... | 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/Chapter13/P265_NetworkInterface/src/main/java/modern/challenge/Main.java | Chapter13/P265_NetworkInterface/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
public class Main {
public static void main(String[] args) throws SocketException {
Enumeration allNetworkInterfaces = NetworkInterface.getNetworkInterf... | 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/Chapter13/P271_ProgrammaticSWSFilters/src/main/java/modern/challenge/Main.java | Chapter13/P271_ProgrammaticSWSFilters/src/main/java/modern/challenge/Main.java | package modern.challenge;
import com.sun.net.httpserver.Filter;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
import com.sun.net.httpserver.SimpleFileServer;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.file.F... | 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/Chapter13/P266_MulticastServer/src/main/java/modern/challenge/Main.java | Chapter13/P266_MulticastServer/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.NetworkInterface;
import java.net.StandardProtocolFamily;
import java.nio.channels.DatagramChannel;
import java.net.StandardSocketOptions;
import java.nio.ByteBuffer;
import java.util.D... | 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/Chapter13/P273_ProgrammaticSWSComplementHandler/src/main/java/modern/challenge/Main.java | Chapter13/P273_ProgrammaticSWSComplementHandler/src/main/java/modern/challenge/Main.java | package modern.challenge;
import com.sun.net.httpserver.Headers;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpHandlers;
import com.sun.net.httpserver.HttpServer;
import com.sun.net.httpserver.Request;
import com.sun.net.httpserver.SimpleFileServer;
import java.io.IOException;
import jav... | 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/Chapter13/P276_SWSJavaRuntimeDirectory/src/main/java/modern/challenge/Main.java | Chapter13/P276_SWSJavaRuntimeDirectory/src/main/java/modern/challenge/Main.java | package modern.challenge;
import com.sun.net.httpserver.HttpServer;
import com.sun.net.httpserver.SimpleFileServer;
import com.sun.net.httpserver.SimpleFileServer.OutputLevel;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.URI;
import java.nio.file.FileSystem;
import java.nio.file.FileS... | 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/Chapter13/P262_NonBlockingEchoClient/src/main/java/modern/challenge/Main.java | Chapter13/P262_NonBlockingEchoClient/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.net.StandardSocketOptions;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.SocketChannel;
import java.nio.charset.Charset;
import java.nio.charset... | 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/Chapter13/P261_BlockingEchoClient/src/main/java/modern/challenge/Main.java | Chapter13/P261_BlockingEchoClient/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.StandardSocketOptions;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.SocketChannel;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.util.Rando... | 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/Chapter13/P267_BlockingEchoClientKEM/src/main/java/modern/challenge/Main.java | Chapter13/P267_BlockingEchoClientKEM/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
import java.nio.charset.Charset;
import java.security.InvalidKeyException;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.securi... | java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
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