customer.java

java课程的资料以及实验的代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;

public class Customer extends JApplet implements ActionListener,Runnable{
	JLabel l1=new JLabel("用户名:");
	JLabel l2=new JLabel("密码:");
	JLabel l3=new JLabel();
	JLabel l4=new JLabel();
	
	JTextField t1=new JTextField(10);
	TextField t2=new TextField(10);
	
	
	
	JPanel p1=new JPanel();
	JPanel p2=new JPanel();
	JPanel p3=new JPanel();
	JPanel p4=new JPanel();
	JPanel p5=new JPanel();
	JPanel p6=new JPanel();
	
	JButton b1=new JButton("确定");
	JButton b2=new JButton("返回");
	Thread datetimeThread;
	
	public void init(){
		p1.setLayout(new GridLayout(3,1));
		p1.add(p2);
		p1.add(p3);
		p1.add(p4);
		p6.add(b2);
		p5.setLayout(new GridLayout(3,1));
		p5.add(l3);
		p5.add(l4);
		p5.add(p6);
		
		p2.add(l1);
		p2.add(t1);
		p3.add(l2);
		p3.add(t2);
		p4.add(b1);
		t2.setEchoChar('*');
		
		this.setContentPane(p1);
		
		this.setSize(300,200);
		this.setVisible(true);
		
		
		b1.addActionListener(this);
		b2.addActionListener(this);
		datetimeThread=new Thread(this);	
		datetimeThread.start();
	}
	

	public void actionPerformed(ActionEvent e){
		if(e.getSource().equals(b1)){
			//p1.hide();
			this.setContentPane(p5);
			l3.setText("你的用户名是:" + t1.getText());
			l4.setText("你的密码是:"+t2.getText());
		}
		else
		{
			this.setContentPane(p1);
			//p1.show();
			t1.setText("");
			t2.setText("");
			
		}
	}
	
	public void display(){
		Date da=new Date();
		GregorianCalendar gc=new GregorianCalendar();
     	gc.setTime(da);
     	
     	String strTime,strDate;
     	strTime=gc.get(Calendar.HOUR)+":"+gc.get(Calendar.MINUTE)+":"+gc.get(Calendar.SECOND);
     	strDate=gc.get(Calendar.YEAR)+"-"+(gc.get(Calendar.MONTH)+1)+"-"+gc.get(Calendar.DATE);
		showStatus(strTime+"  "+strDate);
	}
	
	public void run()
	{
		//while(true)
		for(;;)
		{
			this.display();
			try
			{
				Thread.sleep(1000);	
			}	
			catch(InterruptedException ee)
			{
				//ee.getMessage();
				throw new RuntimeException(ee);
			}
		}
	}
}