Ernst

import java.util.Random;

public class Contest {
    public static void main(String[] args){
        Random random = new Random();
        int count;
        long average[] = new long[2];
        int[] dices = new int[2];
        for (int k = 0; k < 2; k++) {
            long timeStart = System.currentTimeMillis();
            count = 0;
            for (int i = 0; i < 300; i++)
                if (random.nextInt(6) == random.nextInt(6))
                     count++;
            System.out.println("Doublets " + k + ": " + count);
            System.out.println("Time processed: " + (average[k] = System.nanoTime() - timeStart) + " Nanosec");
        }
        System.out.println("Average Time: " + (average[0] + average[1]) / 2 + " Nanosec");
    }
}