example11_1.java

来自「不错的教程 适合中高级人员的使用」· Java 代码 · 共 44 行

import java.applet.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;

class Mypanel extends Panel implements ActionListener
{
	Button button1,button2,button3;
	Color backColor;
	Mypanel()
	{
		button1=new Button("确定");
		button2=new Button("取消");
		button3=new Button("保存");
		add(button1);add(button2);add(button2);
		setBackground(Color.pink);
		backColor=getBackground();
		button1.addActionListener(this);button2.addActionListener(this);
	}
	public void actionPerformed(ActionEvent e)
	{
		if(e.getSource()==button1)
		{setBackground(Color.cyan);}
		else
		{setBackground(backColor);}
	}
}



public class Example11_1 extends Applet 
{
	Mypanel panel1,panel2,panel3;
	Button button;

	public void init()
	{
		panel1=new Mypanel();panel2=new Mypanel();panel3=new Mypanel();
		button=new Button("我不在那些面板里");
		add(panel1);add(panel2);add(panel3);
		add(button);
	}
}