1  import java.util.Random;

  2  

  3  /**

  4     This class contains utility methods for array manipulation.

  5  */  

  6  public class ArrayUtil

  7  {  

  8     /**

  9        Creates an array filled with random values.

 10        @param length the length of the array

 11        @param n the number of possible random values

 12        @return an array filled with length numbers between

 13        0 and n-1

 14     */

 15     public static int[] randomIntArray(int length, int n)

 16     {  

 17        int[] a = new int[length];

 18        Random generator = new Random();

 19        

 20        for (int i = 0; i < a.length; i++)

 21           a[i] = generator.nextInt(n);

 22        

 23        return a;

 24     }

 25  }

 26