prob of 10 in a row, picking 60 out of 228.

ten_in_a_row.java

public class Main {
    public final static int kHoles = 228;
    public final static int kBalls = 60;

    public static void main(String[] args) {
        Random r = new Random();
        int[] hist = new int[kBalls + 1];
        for (int round = 0; round < 1000*1000*10; ++round) {
            boolean[] holes = new boolean[kHoles+1];
            int balls = 0;
            while (balls < kBalls) {
                int x = r.nextInt(kHoles);
                if (!holes[x]) {
                    holes[x] = true;
                    ++balls;
                }
            }

            int maxContinues = 0;
            int continues = 0;
            for (int i = 0; i < holes.length; ++i) {
                if (holes[i]) {
                    ++continues;
                }
                else {
                    if (continues > maxContinues)
                         maxContinues = continues;
                    continues = 0;
                }
            }
           ++hist[maxContinues];
        }
        
        for (int i = 0; i < hist.length; ++i) {
            System.out.printf("%2d %d\n", i, hist[i]);
        }
    }
}