getRandomWithGetZeroOrOne

import java.util.Random;

/**
 * Created by sangc on 2016-02-09.
 */
public class Rand {
    public static void main(String[] args) {
        for (int i = 0; i < 100; i++) {
            getRandom(10);
        }
    }
    public static int getZeroOrOne() {
        return new Random().nextInt(2);
    }

    protected static int getRandom(int i) {
        String convertBinary = Integer.toBinaryString(i - 1);
        String randBinary;
        do {
            randBinary = "";
            for (int j = 0; j < convertBinary.length(); j++) {
                randBinary += String.valueOf(getZeroOrOne());
            }
        } while (convertBinary.compareTo(randBinary) < 0);

        return Integer.valueOf(randBinary, 2);
    }
}