example11_3.java.bak

不错的教程 适合中高级人员的使用

import java.applet.*;

import java.awt.*;

class Mycanvas extends Canvas
{
	String s;
	Mycanvas(String s)
	{
		this.s=s;
		setSize(90,80);
		setBackground(Color.cyan);
	}
	public void paint(Graphics g)
	{
		if(s.equals("circle"))
		{g.drawOval(25,25,30,30);}
		else if(s.equals("rect"))
		{g.drawRect(30,35,20,20);}
	}
}



public class Example11_3 extends Applet 
{
	Mycanvas canvas1,canvas2;
	public void init()
	{
		canvas1=new Mycanvas("circle");canvas2=new Mycanvas("rect");
		add(canvas1);
		Panel p=new Panel();p.setBackground(Color.pink);
		p.add(canvas1);
		add(p);
	}
}