logindemo.java

java课程的资料以及实验的代码

import java.awt.*;
import java.awt.event.*;
public class LoginDemo extends Frame implements ActionListener
{
	Label lbl1;
	Label lbl2;
	Label lbl3;
	TextField tf1;
	TextField tf2;
	Button bt1;
	Button bt2;
	LoginDemo()
	{
		super("Login Window");
	    lbl1=new Label("name");
	    lbl2=new Label("age");
	    lbl3=new Label("        ");
	    tf1=new TextField(20);
	    tf2=new TextField(20);
	    bt1=new Button("ok");
	    bt2=new Button("canel");
	    this.setLayout(new GridLayout(4,2));
	    this.add(lbl1);
	    this.add(tf1);
	    this.add(lbl2);
	    this.add(tf2);
	    
	    this.add(bt1);
	    this.add(bt2);
	    this.add(lbl3);
	    bt1.addActionListener(this);
	    bt2.addActionListener(this);
	    this.setSize(200,300);
	    this.setVisible(true);
	    
	}
	public void actionPerformed(ActionEvent e)
	{
		Object obj=e.getSource();
		if(obj==bt1)
		lbl3.setText("name:"+tf1.getText()+(char)13+(char)10+"age:"+tf2.getText());
		else if(obj==bt2)
		{
			System.exit(0);
			this.dispose();
			
		}
		}
		public static void main(String args[])
		{
			new LoginDemo();
		}
	
}