example14_3.java

不错的教程 适合中高级人员的使用

import java.applet.*;import java.awt.*;import java.awt.event.*;
public class Example14_3 extends Applet
{   int i=0;
	public void paint(Graphics g)
	{
		i=(i+2)%360;
    	Color c=new Color((3*i)%255,(7*i)%255,(11*i)%255);
		g.setColor(c);
		g.fillArc(30,50,120,100,i,2);
		g.fillArc(30,152,120,100,i,2);
		try{
			Thread.sleep(300);
		}
		catch(InterruptedException e){}
		repaint();
	}
	public void update(Graphics g)
	{
		g.clearRect(30,152,120,100);
		paint(g);
	}

}