www.pudn.com > 2007419349385.rar > fangchan.java

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

public class fangchan extends Applet implements ItemListener{

   CheckboxGroup cbg=new CheckboxGroup( );
   CheckboxGroup ckg=new CheckboxGroup( );
   CheckboxGroup chg=new CheckboxGroup( );
   Checkbox cx1=new Checkbox("查询1",cbg,false),
	    cx2=new Checkbox("查询2",cbg,false),
	    cx3=new Checkbox("查询1",ckg,false),
	    cx4=new Checkbox("查询2",ckg,false),
	    cx5=new Checkbox("房产信息",chg,false),
	    cx6=new Checkbox("住房信息",chg,false);
   Button b1=new Button("确定");
   Button b2=new Button("返回 ");
   Label lb1=new Label("房产名称:"),
	 lb2=new Label("房产编号:"),
	 lb3=new Label("门牌号:"),
	 lb4=new Label("户主姓名:"); 
   TextField tf1=new TextField(10), 
	     tf2=new TextField(10),
	     tf3=new TextField(10), 
	     tf4=new TextField(10);
    
    public void init( )
    {
	setBackground(Color.pink);
	
	setLayout(new FlowLayout(FlowLayout.LEFT,80,10));
	Panel p1=new Panel( ),
	      p2=new Panel( ),
	      p3=new Panel( ),
	      p4=new Panel( ),
	      p5=new Panel( );
	cx5.setFont(new  Font("CHINESE_GB2312",Font.BOLD,60));      
	add(cx5);
	cx5.addItemListener(this);
	
	p1.add(cx1);
	cx1.addItemListener(this);
	
	p1.add(lb1);
	p1.add(tf1);
	add(p1);
	
	p2.add(cx2);
	cx2.addItemListener(this);
	
	p2.add(lb2);
	p2.add(tf2);
	add(p2);
	cx6.setFont(new  Font("CHINESE_GB2312",Font.BOLD,60));
	add(cx6);
	cx6.addItemListener(this);
	
	p3.add(cx3);
	cx3.addItemListener(this);
	p3.add(lb3);
	p3.add(tf3);
	add(p3);
	p4.add(cx4);
	cx4.addItemListener(this);
	p4.add(lb4);
	p4.add(tf4);
	add(p4);
	p5.setLayout(new FlowLayout(FlowLayout.CENTER,80,80));
	p5.add(b1);
	b1.invalidate( );
	b1.setBackground(Color.lightGray);
	p5.add(b2);
	b2.setBackground(Color.yellow);
	b2.addActionListener(new MyListener( ));
	add(p5);
    }
    public void itemStateChanged(ItemEvent e)
    {
	b1.setBackground(Color.yellow);
	b1.addActionListener(new MyListener( ));
    }
   
    class MyListener implements ActionListener
    {
	public void actionPerformed(ActionEvent ae)
	{
	   if(ae.getSource( )==b1)
	   {
	       
	   } 
	}
    }
    
}