public class PrintSample extends JFrame implements WindowListener{
  public static void main(String[] args) {
    PrintSample ps = new PrintSample();ps.pack();
    ps.setVisible(true);
    ps.addWindowListener(ps);
  }

public void windowActivated(WindowEvent e){

   }
public void windowClosed(WindowEvent e){
stm.cut1();
System.out.println("lskjdf");
   }
   
public void windowClosing(WindowEvent e){
   }
public void windowDeactivated(WindowEvent e){
   }
public void windowIconified(WindowEvent e){
   }
public void windowOpened(WindowEvent e){
   }
public void windowDeiconified(WindowEvent e){
   }

}

这样不行.

protected void processWindowEvent(WindowEvent e) {
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
 }
这样也行，你把这个方法添到你的程序中看看
应该也是可以的
更方便一些

你在windowClosing事件中写保证没问题

addWindowListener(new WindowAdapter(){ 
public void windowClosing(WindowEvent e) 
{
/////add your code
}
});