mu.java

面板、菜单、工具栏

import java.awt.*;
import java.awt.event.ActionListener;
import java.util.EventListener;
import java.awt.event.ActionEvent;
class Mu extends Frame implements ActionListener
{
	Panel mainPanel=new Panel();
	Panel p1=new Panel();
	Panel p2=new Panel();
	
	Button b1=new Button("按钮1");
	Button b2=new Button("按钮2");
	Button b3=new Button("按钮3");
	Button b4=new Button("按钮4");
	Button b5=new Button("按钮5");
	Button b6=new Button("按钮6");
	CardLayout card=new CardLayout();
	public Mu(String s)
	{
		super(s);
		
		p1.setLayout(new BorderLayout());
		p1.setBackground(Color.red);
		
		p1.add(b1,BorderLayout.NORTH);
		p1.add(b2,BorderLayout.SOUTH);
		
		p2.setLayout(new GridLayout(2,2));
		p2.add(b3);
		p2.add(b4);
		p2.add(b5);
		p2.add(b6);
		
		mainPanel.setLayout(card);
		mainPanel.add("Test",p1);
		mainPanel.add("红色面板",p2);
		add(mainPanel);
		b1.addActionListener(this);
		b3.addActionListener(this);
	}
	public static void main(String args[])
	{
		Mu m=new Mu("复杂布局");
		m.setSize(300,200);
		m.setVisible(true);
	}

	public void actionPerformed(ActionEvent e) {
		// TODO: Add your code here
		
		if(e.getSource()==b1)//getsource是获得按钮名称getactioncommand是获得按钮内容
		{
			b3.setBackground(Color.blue);
			card.next(mainPanel);
			
		}
		else if(e.getSource()==b3)
		{
			b1.setBackground(Color.cyan); 
			card.first(mainPanel);
		}
	}
}