clear bits in range

 public class clearbitsinrange {

    public static int clear(int n, int i, int j) {

        int a = (~0) << (j + 1);

        int b = (1 << i) - 1;

        int bitmask = a | b;

        return n & bitmask;

    }

    public static void main(String[] args) {

        System.out.println(clear(10, 4, 2));

    }

}