1 /*
   2  * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 /* JFrameCreateTime:
  26  *
  27  * Example swing application that just creates a JFrame object.
  28  *
  29  */
  30 
  31 /* Early in 1.5 it was reported that doing a step into the first JFrame
  32  *   was very slow (VisualMust debugger people reported this).
  33  */
  34 
  35 import java.awt.GraphicsEnvironment;
  36 import javax.swing.*;
  37 
  38 public class JFrameCreateTime {
  39     public static void main(String[] args) {
  40         if (GraphicsEnvironment.getLocalGraphicsEnvironment().isHeadlessInstance()) {
  41             System.out.println("JFrame test was skipped due to headless mode");            
  42         } else {    
  43             JFrame f;
  44             long start, end;
  45 
  46             start = System.currentTimeMillis();
  47             f = new JFrame("JFrame");
  48             end = System.currentTimeMillis();
  49 
  50             System.out.println("JFrame first creation took " + (end - start) + " ms");
  51 
  52             start = System.currentTimeMillis();
  53             f = new JFrame("JFrame");
  54             end = System.currentTimeMillis();
  55             System.out.println("JFrame second creation took " + (end - start) + " ms");
  56         }
  57         System.exit(0);
  58     }
  59 }