loginapplet.java

来自「Java Classic Examples是我买的两本书：《JAVA经典实例》和」· Java 代码 · 共 38 行

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class LoginApplet extends Applet implements ActionListener
{
    Button b1;
    TextField tf1,tf2;
    public void init()
    {
        Label t1,t2,t3; 
        Choice c1; 
        setBackground(Color.white);
        setLayout(new FlowLayout(FlowLayout.LEFT));
        t1 = new Label("邮箱");
        tf1 = new TextField("用户名",10);
        t2 = new Label("@");
        t2.setFont(new Font("Dialog",0,18));
        c1 = new Choice();
        c1.addItem("263.net");
        t3 = new Label("密码");
        tf2 = new TextField("********",10);
        b1 = new Button("登录"); 
        b1.addActionListener(this);    //为按钮注册事件监听程序
        tf2.addActionListener(this);   //为文本行注册事件监听程序
        add(t1);
        add(tf1);
        add(t2);
        add(c1);
        add(t3);
        add(tf2);
        add(b1);
    }
    public void actionPerformed(ActionEvent e)
    {
        if ((e.getSource()==b1) || (e.getSource()==tf2))
        {}                             //单击按钮或文本行中按〈回车〉时
    }
}