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 }