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("郵箱");
        tf1 = new TextField("用戶名",10);
        t2 = new Label("@");
        t2.setFont(new Font("Dialog",0,18));
        c1 = new Choice();
        c1.addItem("263.net");
        t3 = new Label("密碼");
        tf2 = new TextField("********",10);
        b1 = new Button("登錄"); 
        b1.addActionListener(this);    //為按鈕注冊事件監(jiān)聽程序
        tf2.addActionListener(this);   //為文本行注冊事件監(jiān)聽程序
        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))
        {}                             //單擊按鈕或文本行中按〈回車〉時
    }
}