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a guest Apr 15th, 2019 59 Never
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  1. /*
  2.  * To change this license header, choose License Headers in Project Properties.
  3.  * To change this template file, choose Tools | Templates
  4.  * and open the template in the editor.
  5.  */
  6. package javaapp;
  7.  
  8. /**
  9.  *
  10.  * @author pw.gr2.5
  11.  */
  12. public class Stopwatch {
  13.    
  14.  
  15.     private long start;
  16.  
  17.     public Stopwatch() {
  18.         start = 0;
  19.     }
  20.  
  21.     public void start() {
  22.         if(start == 0)
  23.             start = System.currentTimeMillis();
  24.     }
  25.  
  26.     // return time (in seconds) since this object was created
  27.     public double elapsedTime() {
  28.         if(start == 0) { return 0; } //You need to start it first
  29.  
  30.         long time = (long) ((System.currentTimeMillis() - start) / 1000.0);
  31.         start = 0; // reset start to allow you to start it again later
  32.         return time;
  33.    
  34.     }
  35. }
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