public class DiceExample {

    public static void main (String[] argv)
    {
        double numTrials = 100000;
        double numSuccesses = 0;
        Dice dice = new Dice ();
        for (int n=0; n<numTrials; n++) {
            dice.roll ();
            if ( dice.first() == dice.second() ) {   // Win?
                numSuccesses ++;                     // Count # wins.
            }
        }
        double prob = numSuccesses /  numTrials;     // Estimate.
        System.out.println ("Pr[win] = " + prob);
    }

}