sandy.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.*;
import javax.swing.*;
import javax.swing.event.*;

public class Sandy extends JFrame implements ItemListener,ActionListener{
	JPanel p1=new JPanel();
	JPanel p2=new JPanel();
	JPanel p3=new JPanel();
	JPanel p=new JPanel();
	JLabel  lb1=new JLabel("");
	JLabel lb2=new JLabel("感谢参与");
	JLabel lb3=new JLabel("希望方向?");
	JCheckBox ch1=new JCheckBox(".NET");
	JCheckBox ch2=new JCheckBox(".JAVA EE");
	
	public Sandy(){
		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.addActionListener(this);
		 ch2.addActionListener(this);
		  p.setLayout(new BorderLayout());
		  p.add("North",p1);
		  p.add("South",p2);
		  p.add("Center",p3);
		  setContentPane(p);
	}
	public void actionPerformed(ActionEvent e)
	{
		lb1.setText("");
		if(ch1.isSelected()==true)
		{
			lb1.setText("您希望从事.NET 平台的开发！");
		}
		if(ch2.isSelected()==true)
		{
			lb1.setText("您希望从事JAVA平台的开发！");
		}
		
		if(ch1.isSelected()==true&&ch2.isSelected()==true){
			lb1.setText("您希望从事.NET和JAVA 平台的开发！");
		}

	}
	public void itemStateChanged(ItemEvent e){
		lb1.setText("");
		if(ch1.isSelected()==true)
		{
			lb1.setText("您希望从事.NET 平台的开发！");
		}
		if(ch2.isSelected()==true)
		{
			lb1.setText("您希望从事JAVA平台的开发！");
		}
		
		if(ch1.isSelected()==true&&ch2.isSelected()==true){
			lb1.setText("您希望从事.NET和JAVA 平台的开发！");
		}
	}
	public static void main(String[]args){
		Sandy s=new Sandy();
		s.show();
	}
}