The life of TB

# ICommand.java public interface ICommand { public abstract void execute();} # Invoker.java public class Invoker { public void execute(ICommand command) {command.execute(); }} # ToggleCommand.java public class ToggleCommand implements ICommand { private boolean isOn; public ToggleCommand() {this.isOn = false; } @Override public void execute() {if (isOn) { isOn = false; System.out.println("boolea..

Java 2016. 7. 18. 14:53

# ICommand.java public interface ICommand { public abstract void exeute();} # CommandManager.java import java.util.ArrayList; public class CommandManager implements ICommand { private ArrayList commands = new ArrayList(); @Override public void exeute() {for (ICommand command : commands) command.exeute(); } public boolean add(ICommand command) {if (command != this) { commands.add(command); return..

Java 2016. 7. 18. 13:22

# Handler.java public abstract class Handler { protected Handler nextHandler; public void setNextHandler(Handler handler) {this.nextHandler = handler; } public abstract void processRequest(Request request);} # Request.java public class Request { private int requestValue = 3; public int getRequest() { return requestValue; } public void setRequest(int value) {this.requestValue = value; }} # Proces..

Java 2016. 7. 15. 23:59

# Animal.java public class Animal { private String name; public Animal(String name) {this.name = name; } public String getName() {return name; } public String say() {return "unknown"; }} # Dog.java public class Dog extends Animal { public Dog(String name) {super(name); } @Override public String say() {return "waf! waf!"; }} # Main.java public class Main { public static void main(String[] args) {..

Java 2016. 7. 13. 19:02

import java.util.ArrayList;import java.util.Iterator; public class Main { public static ArrayList al = new ArrayList(); public static void main(String[] args) { al.add("a");al.add("b");al.add("c"); // enhancedForLoop(); // iteratorForLoop(); // iteratorWhileLoop(); // whileLoopIndex(); } private static void iteratorWhileLoop() {Iterator itr = al.iterator();while (itr.hasNext()) { System.out.prin..

Java 2016. 7. 13. 11:25

# Wildcards in Parameters - - unknown type-

Java 2016. 7. 12. 20:55

# Animal.java public class Animal { private String name; public Animal() { } public Animal(String name) {this.name = name; } public String getName() {return name; } @Override public String toString() {return String.format("%s\n", this.name); } @Override public boolean equals(Object obj) {if (obj == null) { return false;} if (!(obj instanceof Animal)) { return false;} return (this.getName().equal..

Java 2016. 7. 10. 11:37

# Animal.java public class Animal implements Comparable { private String name; public Animal() { } public Animal(String name) {this.name = name; } public String getName() {return name; } @Override public String toString() {return String.format("%s\n", this.name); } @Override public boolean equals(Object obj) {if (obj == null) { return false;} if (!(obj instanceof Animal)) { return false;} return..

Java 2016. 7. 10. 10:06