Java tutorial
//package com.java2s; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.JFrame; public class Main { /** * create JFrame that has a WindowListener object that was invoked * System.exit(0) by pushing close button. */ public static JFrame getTestFrame(String title) { JFrame f = new JFrame(title); f.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); return f; } }