初学java之触发响应事件举例子

package hello;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class ReaderListen extends JFrame implements ActionListener
{

public void actionPerformed(ActionEvent e)
{
// TODO Auto-generated method stub
JFrame myjframe;
myjframe = new JFrame();
JTextArea mytest;
mytest =new JTextArea(e.getActionCommand(),8,9);
myjframe.add(mytest);
myjframe.setBounds(20, 30, 200, 300);
myjframe.setVisible(true);

}
}