// 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");
  }
}