事件监听器的儿子

package zwzw;
import java.awt.;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.;
public class AL implements ActionListener {
JFrame jf;
JPanel jp;
JButton jb;
JLabel jl;
public AL() {
jf=new JFrame(",,,,,");
jp=new JPanel();
jb=new JButton("ok");
jl=new JLabel("hit me!!");
jb.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e) {
jp.setBackground(Color.pink);
jb.setVisible(false);
}
});
jf.setBounds(500,80, 400, 500);
jf.setBackground(Color.blue);
jf.setVisible(true);
jb.setSize(200, 300);
jl.setSize(200, 300);
jp.add(jb);
jp.add(jl);
jf.add(jp);
}
public static void main(String args[]) {
new AL();
}
@Override
public void actionPerformed(ActionEvent e) {
}
}