awtsandy.java

java课程的资料以及实验的代码

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



public class AwtSandy extends Frame implements ItemListener{
	Panel p1=new Panel();
	Panel p2=new Panel();
	Panel p3=new Panel();
	Panel p=new Panel();
	Label  lb1=new Label("");
	Label lb2=new Label("感谢参与");
	Label lb3=new Label("希望方向?");
	Checkbox ch1=new Checkbox(".NET");
	Checkbox ch2=new Checkbox(".JAVA EE");
	
	public AwtSandy(){
		super("IT调研");
		setSize(400,250);
		//this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	   
		p1.setLayout(new FlowLayout(FlowLayout.LEFT,10,10));
		  p1.add(lb3);
		  p1.add(ch1);
		  p1.add(ch2);
		 p2.setLayout(new FlowLayout());
		 p2.add(lb2);
		 p3.setLayout(new FlowLayout());
		 p3.add(lb1);
		 //ch1.addItemListener(this);
		 //ch2.addItemListener(this);
		 ch1.addItemListener(this);
		 ch2.addItemListener(this);
		  p.setLayout(new BorderLayout());
		  p.add("North",p1);
		  p.add("South",p2);
		  p.add("Center",p3);
		  add(p);
		  this.addWindowListener(new WindowAdapter(){
			public void windowClosing(WindowEvent we)
			{
				dispose();
				System.exit(1);
			}
		  });
		  this.setSize(400,300);
	}
	
	public void itemStateChanged(ItemEvent e){
		lb1.setText("");
		if(ch1.getSelectedObjects()!=null)
		{
			lb1.setText("您希望从事.NET 平台的开发！");
		}
		if(ch2.getSelectedObjects()!=null)
		{
			lb1.setText("您希望从事JAVA平台的开发！");
		}
		
		if(ch1.getSelectedObjects()!=null&&ch2.getSelectedObjects()!=null){
			lb1.setText("您希望从事.NET和JAVA 平台的开发！");
		}
	}
	public static void main(String[]args){
		AwtSandy s=new AwtSandy();
		s.setVisible(true);
	}
}