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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/ElectricComponent.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/ElectricComponent.java | package modern.circuit;
import modern.circuit.type.ElectricCircuit;
import modern.circuit.panel.ElectricBreaker;
import modern.circuit.capacitor.Capacitor;
import modern.circuit.resistor.Resistor;
import modern.circuit.transistor.Transistor;
public sealed interface ElectricComponent
permits ElectricCircuit, ... | 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/type/ElectricCircuit.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/type/ElectricCircuit.java | package modern.circuit.type;
import modern.circuit.ElectricComponent;
public sealed abstract class ElectricCircuit implements ElectricComponent
permits ParallelCircuit, SeriesCircuit, ShortCircuit {
public abstract void on();
public abstract void off();
}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/type/SeriesCircuit.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/type/SeriesCircuit.java | package modern.circuit.type;
import modern.circuit.ElectricComponent;
public final class SeriesCircuit extends ElectricCircuit {
public SeriesCircuit(ElectricComponent... comp) {}
@Override
public void off() {}
@Override
public void on() {}
}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/type/ShortCircuit.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/type/ShortCircuit.java | package modern.circuit.type;
import modern.circuit.ElectricComponent;
public final class ShortCircuit extends ElectricCircuit {
public ShortCircuit(ElectricComponent... comp) {}
@Override
public void on() {}
@Override
public void off() {}
} | 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/type/ParallelCircuit.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/type/ParallelCircuit.java | package modern.circuit.type;
import modern.circuit.ElectricComponent;
public final class ParallelCircuit extends ElectricCircuit {
public ParallelCircuit(ElectricComponent... comp) {}
@Override
public void off() {}
@Override
public void on() {}
}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/panel/ElectricPanel.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/panel/ElectricPanel.java | package modern.circuit.panel;
import modern.circuit.type.ElectricCircuit;
import modern.circuit.capacitor.CeramicCapacitor;
import modern.circuit.capacitor.ElectrolyticCapacitor;
import modern.circuit.resistor.CarbonResistor;
import modern.circuit.resistor.MetalFilmResistor;
import modern.circuit.resistor.MetalOxideRe... | 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/panel/ElectricBreaker.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/panel/ElectricBreaker.java | package modern.circuit.panel;
import modern.circuit.ElectricComponent;
public sealed interface ElectricBreaker extends ElectricComponent
permits ElectricPanel {
void switchOn();
void switchOff();
}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/capacitor/CeramicCapacitor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/capacitor/CeramicCapacitor.java | package modern.circuit.capacitor;
public final class CeramicCapacitor extends Capacitor {}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/capacitor/ElectrolyticCapacitor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/capacitor/ElectrolyticCapacitor.java | package modern.circuit.capacitor;
public final class ElectrolyticCapacitor extends Capacitor {} | 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/capacitor/Capacitor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/capacitor/Capacitor.java | package modern.circuit.capacitor;
import modern.circuit.ElectricComponent;
public sealed abstract class Capacitor implements ElectricComponent
permits CeramicCapacitor, ElectrolyticCapacitor {}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/resistor/CarbonResistor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/resistor/CarbonResistor.java | package modern.circuit.resistor;
public final class CarbonResistor extends Resistor {}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/resistor/MetalOxideResistor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/resistor/MetalOxideResistor.java | package modern.circuit.resistor;
public final class MetalOxideResistor extends MetalResistor {}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/resistor/MetalResistor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/resistor/MetalResistor.java | package modern.circuit.resistor;
public sealed class MetalResistor extends Resistor
permits MetalFilmResistor, MetalOxideResistor {}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/resistor/MetalFilmResistor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/resistor/MetalFilmResistor.java | package modern.circuit.resistor;
public final class MetalFilmResistor extends MetalResistor {}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/resistor/Resistor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/resistor/Resistor.java | package modern.circuit.resistor;
import modern.circuit.ElectricComponent;
public sealed abstract class Resistor implements ElectricComponent
permits MetalResistor, CarbonResistor {}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/transistor/BipolarTransistor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/transistor/BipolarTransistor.java | package modern.circuit.transistor;
public final class BipolarTransistor extends Transistor {}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/transistor/Transistor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/transistor/Transistor.java | package modern.circuit.transistor;
import modern.circuit.ElectricComponent;
public sealed abstract class Transistor implements ElectricComponent
permits FieldEffectTransistor, BipolarTransistor {}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/transistor/FieldEffectTransistor.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/circuit/transistor/FieldEffectTransistor.java | package modern.circuit.transistor;
public final class FieldEffectTransistor extends Transistor {}
| 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/Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/challenge/client/Main.java | Chapter08/P176_SealedElectricPanelHierarchy/src/main/java/modern/challenge/client/Main.java | package modern.challenge.client;
import modern.circuit.panel.ElectricPanel;
public class Main {
public static void main(String[] args) {
ElectricPanel panel = new ElectricPanel();
panel.switchOn();
System.out.println("Power on ...");
}
}
| 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/Chapter08/P179_SealedClassesSwitchBinTree/src/main/java/modern/challenge/Main.java | Chapter08/P179_SealedClassesSwitchBinTree/src/main/java/modern/challenge/Main.java | package modern.challenge;
import modern.challenge.Main.BinaryTree.Leaf;
import modern.challenge.Main.BinaryTree.Node;
public class Main {
sealed interface BinaryTree {
record Leaf() implements BinaryTree {}
record Node(int value, BinaryTree left, BinaryTree right) implements BinaryTree {} ... | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/module-info.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/module-info.java | module P175_SealedHierarchySeparatePackages {} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/modern/challenge/Main.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {}
} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/rafinery/fuel/type/LiquidFuel.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/rafinery/fuel/type/LiquidFuel.java | package com.rafinery.fuel.type;
import com.refinery.fuel.Fuel;
import com.refinery.liquidfuel.Petroleum;
public sealed interface LiquidFuel extends Fuel permits Petroleum {}
| 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/rafinery/fuel/type/SolidFuel.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/rafinery/fuel/type/SolidFuel.java | package com.rafinery.fuel.type;
import com.refinery.fuel.Fuel;
import com.refinery.solidfuel.Charcoal;
import com.refinery.solidfuel.Coke;
public sealed interface SolidFuel extends Fuel permits Coke, Charcoal {} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/rafinery/fuel/type/GaseousFuel.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/rafinery/fuel/type/GaseousFuel.java | package com.rafinery.fuel.type;
import com.refinery.fuel.Fuel;
import com.refinery.gaseousfuel.NaturalGas;
import com.refinery.gaseousfuel.Propane;
public sealed interface GaseousFuel extends Fuel permits NaturalGas, Propane {}
| 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/liquidfuel/Gasoline.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/liquidfuel/Gasoline.java | package com.refinery.liquidfuel;
public final class Gasoline extends Petroleum {}
| 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/liquidfuel/Diesel.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/liquidfuel/Diesel.java | package com.refinery.liquidfuel;
public final class Diesel extends Petroleum {}
| 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/liquidfuel/Petroleum.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/liquidfuel/Petroleum.java | package com.refinery.liquidfuel;
import com.rafinery.fuel.type.LiquidFuel;
public sealed class Petroleum implements LiquidFuel permits Diesel, Gasoline, Ethanol {} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/liquidfuel/Ethanol.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/liquidfuel/Ethanol.java | package com.refinery.liquidfuel;
public final class Ethanol extends Petroleum {} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Dichloromethane.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Dichloromethane.java | package com.refinery.gaseousfuel;
public sealed class Dichloromethane extends Methane permits Trichloromethane {} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Propane.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Propane.java | package com.refinery.gaseousfuel;
import com.rafinery.fuel.type.GaseousFuel;
public final class Propane implements GaseousFuel {} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Chloromethane.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Chloromethane.java | package com.refinery.gaseousfuel;
public final class Chloromethane extends Methane {} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Methane.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Methane.java | package com.refinery.gaseousfuel;
public sealed class Methane implements NaturalGas permits Chloromethane, Dichloromethane {} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Trichloromethane.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Trichloromethane.java | package com.refinery.gaseousfuel;
public final class Trichloromethane extends Dichloromethane {} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Hydrogen.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/Hydrogen.java | package com.refinery.gaseousfuel;
public final class Hydrogen implements NaturalGas {} | 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/NaturalGas.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/gaseousfuel/NaturalGas.java | package com.refinery.gaseousfuel;
import com.rafinery.fuel.type.GaseousFuel;
public sealed interface NaturalGas extends GaseousFuel permits Hydrogen, Methane {}
| 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/solidfuel/Coke.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/solidfuel/Coke.java | package com.refinery.solidfuel;
import com.rafinery.fuel.type.SolidFuel;
public final class Coke implements SolidFuel {}
| 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/solidfuel/Charcoal.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/solidfuel/Charcoal.java | package com.refinery.solidfuel;
import com.rafinery.fuel.type.SolidFuel;
public final class Charcoal implements SolidFuel {}
| 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/Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/fuel/Fuel.java | Chapter08/P175_SealedHierarchySeparatePackages/src/main/java/com/refinery/fuel/Fuel.java | package com.refinery.fuel;
import com.rafinery.fuel.type.GaseousFuel;
import com.rafinery.fuel.type.LiquidFuel;
import com.rafinery.fuel.type.SolidFuel;
public sealed interface Fuel permits SolidFuel, LiquidFuel, GaseousFuel {} | 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/Chapter08/P184_HiddenClasses/src/main/java/modern/challenge/InternalMath.java | Chapter08/P184_HiddenClasses/src/main/java/modern/challenge/InternalMath.java | package modern.challenge;
import java.util.stream.IntStream;
public class InternalMath implements Math {
public long sum(int[] nr) {
return IntStream.of(nr).sum();
}
} | 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/Chapter08/P184_HiddenClasses/src/main/java/modern/challenge/Main.java | Chapter08/P184_HiddenClasses/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.io.IOException;
import java.io.InputStream;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodHandles.Lookup.ClassOption;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class Main {
public static void main(Strin... | 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/Chapter08/P184_HiddenClasses/src/main/java/modern/challenge/Math.java | Chapter08/P184_HiddenClasses/src/main/java/modern/challenge/Math.java | package modern.challenge;
public interface Math {}
| 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/Chapter08/P178_SealedClassesCastConvInstanceof3/src/main/java/modern/challenge/Triangle.java | Chapter08/P178_SealedClassesCastConvInstanceof3/src/main/java/modern/challenge/Triangle.java | package modern.challenge;
public class Triangle {} | 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/Chapter08/P178_SealedClassesCastConvInstanceof3/src/main/java/modern/challenge/Quadrilateral.java | Chapter08/P178_SealedClassesCastConvInstanceof3/src/main/java/modern/challenge/Quadrilateral.java | package modern.challenge;
public sealed interface Quadrilateral permits Rectangle {}
| 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/Chapter08/P178_SealedClassesCastConvInstanceof3/src/main/java/modern/challenge/Rectangle.java | Chapter08/P178_SealedClassesCastConvInstanceof3/src/main/java/modern/challenge/Rectangle.java | package modern.challenge;
// public final class Rectangle extends Triangle implements Quadrilateral {}
public final class Rectangle implements Quadrilateral {}
| 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/Chapter08/P178_SealedClassesCastConvInstanceof3/src/main/java/modern/challenge/Main.java | Chapter08/P178_SealedClassesCastConvInstanceof3/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void drawTriangle(Triangle t) {
// if (t instanceof Quadrilateral) { // the compiler is aware that 't' cannot be a Quadrilateral
// System.out.println("This is not a triangle");
//} else {
System.out.println("Drawi... | 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/Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/ElectricCircuit.java | Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/ElectricCircuit.java | package modern.challenge;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public final class ElectricCircuit implements ElectricComponent {
private final int id;
private final List<ElectricComponent> comps = new ArrayList<>();
public ElectricCircuit(int id) {
this.id ... | 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/Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/Transistor.java | Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/Transistor.java | package modern.challenge;
public final class Transistor implements ElectricComponent {
private final float length;
private final float width;
private final float threshholdVoltage;
public Transistor(float length, float width, float threshholdVoltage) {
this.length = length;
this.w... | 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/Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/ElectricComponent.java | Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/ElectricComponent.java | package modern.challenge;
public sealed interface ElectricComponent
permits Capacitor, Transistor, Resistor, ElectricCircuit {}
| 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/Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/Main.java | Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
Capacitor c1 = new Capacitor(28, 20, 40);
Capacitor c2 = new Capacitor(26, 22, 30);
Resistor r1 = new Resistor(100, 2.5f, 5, 50, 0.25f);
Transistor t1 = new Transistor(0.09f, 0.27f, 0.1f);
... | 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/Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/Capacitor.java | Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/Capacitor.java | package modern.challenge;
public final class Capacitor implements ElectricComponent {
private final int maxImpedance;
private final int dielectricResistance;
private final int coreTemperature;
public Capacitor(int maxImpedance, int dielectricResistance, int coreTemperature) {
this.maxImpedanc... | 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/Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/Resistor.java | Chapter08/P180_SealedClassesAndVisitorPattern2/src/main/java/modern/challenge/Resistor.java | package modern.challenge;
public final class Resistor implements ElectricComponent {
private final int resistance;
private final float clazz;
private final int voltage;
private final int current;
private final float power;
public Resistor(int resistance, float clazz, int voltage, int curr... | 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_DtoRecordConstructor/src/main/java/com/bookstore/MainApplication.java | Chapter04/P105_DtoRecordConstructor/src/main/java/com/bookstore/MainApplication.java | package com.bookstore;
import com.bookstore.dto.AuthorDto;
import java.util.List;
import com.bookstore.service.BookstoreService;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springfr... | 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_DtoRecordConstructor/src/main/java/com/bookstore/dto/AuthorDto.java | Chapter04/P105_DtoRecordConstructor/src/main/java/com/bookstore/dto/AuthorDto.java | package com.bookstore.dto;
public record AuthorDto(String name, int age) {}
| 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_DtoRecordConstructor/src/main/java/com/bookstore/service/BookstoreService.java | Chapter04/P105_DtoRecordConstructor/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_DtoRecordConstructor/src/main/java/com/bookstore/repository/AuthorRepository.java | Chapter04/P105_DtoRecordConstructor/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_DtoRecordConstructor/src/main/java/com/bookstore/entity/Author.java | Chapter04/P105_DtoRecordConstructor/src/main/java/com/bookstore/entity/Author.java | package com.bookstore.entity;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import java.io.Serializable;
@Entity
public class Author implements Serializable {
private static final long serialVersionUID = 1L;... | 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/P104_JavaRecordsInTemplates/src/main/java/modern/challenge/MainApplication.java | Chapter04/P104_JavaRecordsInTemplates/src/main/java/modern/challenge/MainApplication.java | package modern.challenge;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MainApplication {
public static void main(String[] args) {
SpringApplication.run(MainApplication.class, args);
}
}
| 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/P104_JavaRecordsInTemplates/src/main/java/modern/challenge/controller/BookstoreController.java | Chapter04/P104_JavaRecordsInTemplates/src/main/java/modern/challenge/controller/BookstoreController.java | package modern.challenge.controller;
import modern.challenge.service.BookstoreService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.ui.Model;
@Controller
public class BookstoreController {
private final BookstoreService ... | 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/P104_JavaRecordsInTemplates/src/main/java/modern/challenge/service/BookstoreService.java | Chapter04/P104_JavaRecordsInTemplates/src/main/java/modern/challenge/service/BookstoreService.java | package modern.challenge.service;
import java.util.List;
import org.springframework.stereotype.Service;
import modern.challenge.record.Author;
import modern.challenge.record.Book;
@Service
public class BookstoreService {
public List<Author> fetchAuthors() {
List<Author> authors = List.of(
... | 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/P104_JavaRecordsInTemplates/src/main/java/modern/challenge/record/Book.java | Chapter04/P104_JavaRecordsInTemplates/src/main/java/modern/challenge/record/Book.java | package modern.challenge.record;
public record Book(String title, String isbn) {}
| 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/P104_JavaRecordsInTemplates/src/main/java/modern/challenge/record/Author.java | Chapter04/P104_JavaRecordsInTemplates/src/main/java/modern/challenge/record/Author.java | package modern.challenge.record;
import java.util.List;
public record Author(String name, String genre, List<Book> books) {}
| 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_DtoRecordJbcTemplate/src/main/java/com/bookstore/MainApplication.java | Chapter04/P105_DtoRecordJbcTemplate/src/main/java/com/bookstore/MainApplication.java | package com.bookstore;
import com.bookstore.jdbcTemplate.dto.AuthorDto;
import java.util.List;
import com.bookstore.service.BookstoreService;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
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/Chapter04/P105_DtoRecordJbcTemplate/src/main/java/com/bookstore/service/BookstoreService.java | Chapter04/P105_DtoRecordJbcTemplate/src/main/java/com/bookstore/service/BookstoreService.java | package com.bookstore.service;
import com.bookstore.jdbcTemplate.dto.AuthorDto;
import com.bookstore.jdbcTemplate.dto.AuthorExtractor;
import java.util.List;
import org.springframework.stereotype.Service;
@Service
public class BookstoreService {
private final AuthorExtractor authorExtractor;
public Bookstor... | 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_DtoRecordJbcTemplate/src/main/java/com/bookstore/jdbcTemplate/dto/AuthorDto.java | Chapter04/P105_DtoRecordJbcTemplate/src/main/java/com/bookstore/jdbcTemplate/dto/AuthorDto.java | package com.bookstore.jdbcTemplate.dto;
import java.util.List;
public record AuthorDto(Long id, String name, int age, List<BookDto> books) {
public void addBook(BookDto book) {
books().add(book);
}
}
| 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_DtoRecordJbcTemplate/src/main/java/com/bookstore/jdbcTemplate/dto/BookDto.java | Chapter04/P105_DtoRecordJbcTemplate/src/main/java/com/bookstore/jdbcTemplate/dto/BookDto.java | package com.bookstore.jdbcTemplate.dto;
public record BookDto(Long id, String title) {} | 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_DtoRecordJbcTemplate/src/main/java/com/bookstore/jdbcTemplate/dto/AuthorExtractor.java | Chapter04/P105_DtoRecordJbcTemplate/src/main/java/com/bookstore/jdbcTemplate/dto/AuthorExtractor.java | package com.bookstore.jdbcTemplate.dto;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Tr... | 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/P92_RecordMultipleCntrs/src/main/java/modern/challenge/MelonRecord.java | Chapter04/P92_RecordMultipleCntrs/src/main/java/modern/challenge/MelonRecord.java | package modern.challenge;
import java.util.HashSet;
import java.util.Set;
public record MelonRecord(String type, float weight) {
private static final String DEFAULT_MELON_TYPE = "Crenshaw";
private static final float DEFAULT_MELON_WEIGHT = 1000;
private static Set<String> countries = new HashSet<>();
... | 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/P92_RecordMultipleCntrs/src/main/java/modern/challenge/Main.java | Chapter04/P92_RecordMultipleCntrs/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
MelonRecord melon1 = new MelonRecord("Cantaloupe", 2600);
MelonRecord melon2 = new MelonRecord("Horned", 1700, "Africa");
MelonRecord melon3 = new MelonRecord("Apollo", 2600, "Malaysia");
MelonR... | 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/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Hospital.java | Chapter04/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Hospital.java | package modern.challenge;
import java.time.LocalDate;
public final class Hospital {
private Hospital() {
throw new AssertionError("Cannot be instantiated");
}
public static String cabinet(Staff staff) {
/*
if (staff instanceof Doctor dr
... | 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/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Patient.java | Chapter04/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Patient.java | package modern.challenge;
public record Patient(String name, int npi, Appointment appointment) {}
| 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/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Resident.java | Chapter04/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Resident.java | package modern.challenge;
public record Resident(String name, Doctor doctor) implements Staff {}
| 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/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Staff.java | Chapter04/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Staff.java | package modern.challenge;
public interface Staff {}
| 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/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Appointment.java | Chapter04/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Appointment.java | package modern.challenge;
import java.time.LocalDate;
public record Appointment(LocalDate date, Doctor doctor) {}
| 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/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Doctor.java | Chapter04/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Doctor.java | package modern.challenge;
public record Doctor(String name, String specialty) implements Staff {}
| 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/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Main.java | Chapter04/P99_RecordPatternInstanceofGuarded/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.time.LocalDate;
public class Main {
public static void main(String[] args) {
Doctor dr1 = new Doctor("John Beer", "Dermatology");
Doctor dr2 = new Doctor("Kyle Ulm", "Allergy");
Doctor dr3 = new Doctor("John Hora", "Allergy");
Reside... | 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/P104_JavaRecordsInControllers/src/main/java/modern/challenge/MainApplication.java | Chapter04/P104_JavaRecordsInControllers/src/main/java/modern/challenge/MainApplication.java | package modern.challenge;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MainApplication {
public static void main(String[] args) {
SpringApplication.run(MainApplication.class, args);
}
}
| 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/P104_JavaRecordsInControllers/src/main/java/modern/challenge/controller/BookstoreController.java | Chapter04/P104_JavaRecordsInControllers/src/main/java/modern/challenge/controller/BookstoreController.java | package modern.challenge.controller;
import java.util.List;
import modern.challenge.service.BookstoreService;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import modern.challenge.record.Author;
@RestController
public class BookstoreControl... | 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/P104_JavaRecordsInControllers/src/main/java/modern/challenge/service/BookstoreService.java | Chapter04/P104_JavaRecordsInControllers/src/main/java/modern/challenge/service/BookstoreService.java | package modern.challenge.service;
import java.util.List;
import org.springframework.stereotype.Service;
import modern.challenge.record.Author;
import modern.challenge.record.Book;
@Service
public class BookstoreService {
public List<Author> fetchAuthors() {
List<Author> authors = List.of(
... | 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/P104_JavaRecordsInControllers/src/main/java/modern/challenge/record/Book.java | Chapter04/P104_JavaRecordsInControllers/src/main/java/modern/challenge/record/Book.java | package modern.challenge.record;
public record Book(String title, String isbn) {}
| 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/P104_JavaRecordsInControllers/src/main/java/modern/challenge/record/Author.java | Chapter04/P104_JavaRecordsInControllers/src/main/java/modern/challenge/record/Author.java | package modern.challenge.record;
import java.util.List;
public record Author(String name, String genre, List<Book> books) {}
| 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/P98_RecordPatternSwitch/src/main/java/modern/challenge/Hospital.java | Chapter04/P98_RecordPatternSwitch/src/main/java/modern/challenge/Hospital.java | package modern.challenge;
import java.time.LocalDate;
public final class Hospital {
private Hospital() {
throw new AssertionError("Cannot be instantiated");
}
public static String cabinet(Staff staff) {
/*
return switch(staff) { // type pattern matching
... | 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/P98_RecordPatternSwitch/src/main/java/modern/challenge/Patient.java | Chapter04/P98_RecordPatternSwitch/src/main/java/modern/challenge/Patient.java | package modern.challenge;
public record Patient(String name, int npi, Appointment appointment) {}
| 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/P98_RecordPatternSwitch/src/main/java/modern/challenge/Resident.java | Chapter04/P98_RecordPatternSwitch/src/main/java/modern/challenge/Resident.java | package modern.challenge;
public record Resident(String name, Doctor doctor) implements Staff {}
| 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/P98_RecordPatternSwitch/src/main/java/modern/challenge/Staff.java | Chapter04/P98_RecordPatternSwitch/src/main/java/modern/challenge/Staff.java | package modern.challenge;
public interface Staff {}
| 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/P98_RecordPatternSwitch/src/main/java/modern/challenge/Appointment.java | Chapter04/P98_RecordPatternSwitch/src/main/java/modern/challenge/Appointment.java | package modern.challenge;
import java.time.LocalDate;
public record Appointment(LocalDate date, Doctor doctor) {}
| 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/P98_RecordPatternSwitch/src/main/java/modern/challenge/Doctor.java | Chapter04/P98_RecordPatternSwitch/src/main/java/modern/challenge/Doctor.java | package modern.challenge;
public record Doctor(String name, String specialty) implements Staff {}
| 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/P98_RecordPatternSwitch/src/main/java/modern/challenge/Main.java | Chapter04/P98_RecordPatternSwitch/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.time.LocalDate;
public class Main {
public static void main(String[] args) {
Doctor dr = new Doctor("John Beer", "Dermatology");
Resident rs = new Resident("Mark Oil", dr);
Patient pt = new Patient("Alicia Goy", 1234567890,
new Appoin... | 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/P93_RecordAndInterfaces/src/main/java/modern/challenge/MelonRecord.java | Chapter04/P93_RecordAndInterfaces/src/main/java/modern/challenge/MelonRecord.java | package modern.challenge;
public record MelonRecord(String type, float weight) implements PestInspector {
@Override
public void exterminatePest() {
if (detectPest()) {
System.out.println("All pests have been exterminated");
} else {
System.out.println("This mel... | 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/P93_RecordAndInterfaces/src/main/java/modern/challenge/Main.java | Chapter04/P93_RecordAndInterfaces/src/main/java/modern/challenge/Main.java | package modern.challenge;
public class Main {
public static void main(String[] args) {
MelonRecord melon = new MelonRecord("Cantaloupe", 2600);
System.out.println(melon);
System.out.println(melon.weight() + " g");
melon.exterminatePest();
}
}
| 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/P93_RecordAndInterfaces/src/main/java/modern/challenge/PestInspector.java | Chapter04/P93_RecordAndInterfaces/src/main/java/modern/challenge/PestInspector.java | package modern.challenge;
public interface PestInspector {
public default boolean detectPest() {
return Math.random() > 0.5d;
}
public void exterminatePest();
}
| 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/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Hospital.java | Chapter04/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Hospital.java | package modern.challenge;
public final class Hospital {
private Hospital() {
throw new AssertionError("Cannot be instantiated");
}
public static String cabinet(Staff staff) {
/*
return switch(staff) {
case Doctor(String name, String specialt... | 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/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Patient.java | Chapter04/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Patient.java | package modern.challenge;
public record Patient(String name, int npi, Appointment appointment) {}
| 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/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Resident.java | Chapter04/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Resident.java | package modern.challenge;
public record Resident(String name, Doctor doctor) implements Staff {}
| 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/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Staff.java | Chapter04/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Staff.java | package modern.challenge;
public interface Staff {}
| 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/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Appointment.java | Chapter04/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Appointment.java | package modern.challenge;
import java.time.LocalDate;
public record Appointment(LocalDate date, Doctor doctor) {}
| 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/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Doctor.java | Chapter04/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Doctor.java | package modern.challenge;
public record Doctor(String name, String specialty) implements Staff {}
| 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/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Main.java | Chapter04/P103_UnnamedPatternSwitch1/src/main/java/modern/challenge/Main.java | package modern.challenge;
import java.time.LocalDate;
public class Main {
public static void main(String[] args) {
Doctor dr = new Doctor("John Beer", "Dermatology");
Resident rs = new Resident("Mark Oil", dr);
Patient pt = new Patient("Alicia Goy", 1234567890,
new Appoin... | 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/P102_StrShortener/src/main/java/modern/challenge/Literal.java | Chapter04/P102_StrShortener/src/main/java/modern/challenge/Literal.java | package modern.challenge;
record Literal(String text) implements 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/Chapter04/P102_StrShortener/src/main/java/modern/challenge/Str.java | Chapter04/P102_StrShortener/src/main/java/modern/challenge/Str.java | package modern.challenge;
interface Str {}
| java | MIT | 47b7c834407a607580baf8e3a23c1c24c24b8bc0 | 2026-01-05T02:37:06.170961Z | false |
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