java.lang.Integer.numberOfLeadingZeros()

package com.codingdict;



import java.lang.*;



public class IntegerDemo {



   public static void main(String[] args) {



      int i = 170;

      System.out.println("Number = " + i);



      /* returns the string representation of the unsigned integer value 

         represented by the argument in binary (base 2) */

      System.out.println("Binary = " + Integer.toBinaryString(i));



      // returns the number of one-bits 

      System.out.println("Number of one bits = " + Integer.bitCount(i));



      /* returns an int value with at most a single one-bit, in the position 

         of the highest-order ("leftmost") one-bit in the specified int value */

      System.out.println("Highest one bit = " + Integer.highestOneBit(i));



      /* returns an int value with at most a single one-bit, in the position

         of the lowest-order ("rightmost") one-bit in the specified int value.*/

      System.out.println("Lowest one bit = " + Integer.lowestOneBit(i));



      /*returns the number of zero bits preceding the highest-order 

         ("leftmost")one-bit */

      System.out.print("Number of leading zeros = ");

      System.out.println(Integer.numberOfLeadingZeros(i));

   }

}