import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class ButtonDemo {
private JFrame
frame=new JFrame("ButtonDemo");
private JButton
b1 = new JButton("按鈕1"),
b2 = new JButton("按鈕2");
private JTextField
txt = new JTextField(10);
//這里是使用一個匿名類來實(shí)現(xiàn)對按鈕的監(jiān)聽
private ActionListener bl = new ActionListener() {
//實(shí)現(xiàn)監(jiān)聽類中的抽象函數(shù)
public void actionPerformed(ActionEvent e) {
String name = ((JButton)e.getSource()).getText();
txt.setText(name);
}
};
public ButtonDemo () {
//將監(jiān)聽對象注冊給兩個按鈕
b1.addActionListener(bl);
b2.addActionListener(bl);
frame.setLayout(new FlowLayout());
frame.add(b1);
frame.add(b2);
frame.add(txt);
frame.setVisible(true);
frame.setSize(200,150);
}
public static void main(String[] args) {
new ButtonDemo ();
}
}

class MyMouseListener extends MouseAdapter{
public void mouseClicked(MouseEvent e){
//實(shí)現(xiàn)當(dāng)點(diǎn)擊鼠標(biāo)時的動作
}
}