// TestButton.java
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.*;
public class TestButton extends JFrame implements ActionListener
{
 private JButton jButton1;
 private JLabel jLabel1;
 private int count=0;
 public static void main(String[] args)
 {
 TestButton frame = new TestButton();
 frame.pack();
 frame.setVisible(true);
 }
 public TestButton()
 {
 setTitle("TestButton");
	 //创建一个带有标签文本和图标的按钮
	 jButton1=new JButton("Press me",new ImageIcon("button.jpg"));
	 //设置按钮的热键为"ALT+P"
	 jButton1.setMnemonic('P');
	 //设置按钮的提示信息为"press me"
	 jButton1.setToolTipText("Press me");
	 jLabel1 = new JLabel("按钮点击了 0 次");
 getContentPane().setLayout(new FlowLayout());
 getContentPane().add(jButton1);
 getContentPane().add(jLabel1);
	 //为按钮注册动作事件的事件监听器
 jButton1.addActionListener(this);
 }
 //事件处理方法
 public void actionPerformed(ActionEvent e)
 {
 		count++;
 		jLabel1.setText("按钮点击了 "+count+" 次");
 }
}