public class Numbers
{
   /**
      Computes the number of even and odd values in a given array
      @param values an array of integer values
      @return an array of length 2 whose 0 entry contains the count
      of even elements and whose 1 entry contains the count of odd
      values
   */
   public int[] evenOdds(int[] values)
   {
      int[] evenOdd = new int[2];
      for(int a : values){evenOdd[(a%2 == 0) ? 0 : 1] += 1;}
      return evenOdd;
   }
}