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Java > Open Source Codes > org > polepos > framework > StopWatch


1 /*
2 This file is part of the PolePosition database benchmark
3 http://www.polepos.org
4
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License
7 as published by the Free Software Foundation; either version 2
8 of the License, or (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public
16 License along with this program; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18 MA 02111-1307, USA. */

19
20 package org.polepos.framework;
21
22 /**
23  * @author Herkules
24  */

25 public class StopWatch
26 {
27     private long startNanos;
28     private long nanosEllapsed;
29
30     public void start()
31     {
32         startNanos = System.nanoTime();
33     }
34
35     public void stop()
36     {
37         nanosEllapsed = System.nanoTime() - startNanos;
38     }
39
40     public long millisEllapsed()
41     {
42         return nanosEllapsed / 1000000;
43     }
44
45     public String JavaDoc toString()
46     {
47         return "" + millisEllapsed() + "ms";
48     }
49     
50 }
51
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