SelectionSortTimer.java

    1	import java.util.Scanner;
    2	
    3	/**
    4	   This program measures how long it takes to sort an
    5	   array of a user-specified size with the selection
    6	   sort algorithm.
    7	*/
    8	public class SelectionSortTimer
    9	{
   10	   public static void main(String[] args)
   11	   {
   12	      Scanner in = new Scanner(System.in);
   13	      System.out.print("Enter array size: ");
   14	      int n = in.nextInt();
   15	
   16	      // Construct random array
   17	
   18	      int[] a = ArrayUtil.randomIntArray(n, 100);
   19	      SelectionSorter sorter = new SelectionSorter(a);
   20	
   21	      // Use stopwatch to time selection sort
   22	
   23	      StopWatch timer = new StopWatch();
   24	
   25	      timer.start();
   26	      sorter.sort();
   27	      timer.stop();
   28	
   29	      System.out.println("Elapsed time: "
   30	            + timer.getElapsedTime() + " milliseconds");
   31	   }
   32	}