ballworld.java

一些JAVA的小程序

import java.awt.*;
import javax.swing.*;

public class BallWorld extends JFrame {

	public static void main (String [ ] args) {
		BallWorld world = new BallWorld (Color.red);
		world.show();
		world.run();
		System.exit(0);
	}

	public static final int FrameWidth = 600;
	public static final int FrameHeight = 400;
	private BallWorldPanel panel;

	private BallWorld (Color ballColor) {
		setSize(FrameWidth, FrameHeight);
		setTitle("Ball World");

		panel = new BallWorldPanel(ballColor);
		getContentPane().add(panel);
	}

	private void run () {
		for (int i = 0; i < 2000; i++) {
			panel.moveBall(FrameWidth-8, FrameHeight-35);
			repaint();
			try {
				Thread.sleep(10);
			} catch(InterruptedException e) { System.exit(0); }
		}
	}
}