Integer.bitCount() Method in Java

 

In this programming, I'm using "Integer.bitCount()" method. This method is in java.lang Package. This method returns only Integer value. "Integer.bitCount()" returns the number of one-bits in the two's complement binary representation of the specified int value.

Syntax :

public staic int bitCount(int n)  

Example :

public class Solution {  

    public static void main(String args[])  

    {  

        int n = 97 ;  

        System.out.println("Entered Integer number is: " + n );  

        // Conversion of integer number to binary  format  

        System.out.println("Binary Conversion: " +Integer.toBinaryString(n));  

        // print number of 1's in the number n  

        System.out.println("Number of 1's bit are: " +Integer.bitCount(n));  

    }  

}  

Output :

Entered Integer number is: 97
Binary Conversion: 1100001
Number of 1's bit are: 3

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