The Big Programming Thread - Page 548

import java.applet.Applet;
import java.awt.Button;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class TestApplet extends Applet {
	public Button spawnThread;
	
	private class ButtonPresser implements Runnable {

		public Button endThread;
		public TestApplet parent;
		public Object notifier = new Object();
		
		public ButtonPresser(TestApplet parent){
			this.parent = parent;
		}
		
		@Override
		public void run() {
			synchronized(notifier){
				endThread = new Button("End Thread");
				endThread.setBounds(0,100,100,20);
				endThread.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent e) {
						synchronized(notifier) {
							notifier.notify();
						}
					}
				});
				parent.add(endThread);
				
				try {
					notifier.wait();
					System.out.println("Thread is done!");
				} catch (InterruptedException e1) {
					e1.printStackTrace();
				}
			}
		}
	}
	
	public void init() {
		final TestApplet thisApp = this;
		spawnThread = new Button("Spawn Thread");
		spawnThread.setBounds(0,0,100,20);
		spawnThread.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				Thread t = new Thread(new ButtonPresser(thisApp));
				t.run();
				try {
					t.join();
				} catch (InterruptedException e1) {
					e1.printStackTrace();
				}
			}
		});
		add(spawnThread);
	}
}