panel.java

java练习程序

import java.applet.*;
import java.awt.*;


class MyPanel extends Panel
{
	Button Btn1,Btn2,Btn3;
	MyPanel()
	{
		Btn1=new Button("确定");
		Btn2=new Button("取消");
		Btn3=new Button("保存");
		add(Btn1);add(Btn2);add(Btn3);
	}
}

public class Panel extends Applet
{
	MyPanel panel1,panel2,panel3;
	Button Btn1;
	public void init()
	{
		panel1=new MyPanel();
		panel2=new MyPanel();
		panel3=new MyPanel();
		Btn1=new Button("我不在那些面板里");
		add(Btn1);add(panel1);add(panel2);add(panel3);
	}
}