Java Integer bitCount() method
The bitCount() method of Integer class of java.lang package returns the count of the number of one-bits in the two’s complement binary representation of an int value. This function is sometimes referred to as the population count.
Syntax :
public static int bitCount(int n) Parameter : n : the value whose bits are to be counted Return : This method returns the count of the number of one-bits in the two's complement binary representation of an int value.
Example :To show working of java.lang.Integer.bitCount() method.
// Java program to demonstrate working// of java.lang.Integer.bitCount() methodimport java.lang.Integer; class Gfg { // driver code public static void main(String args[]) { int a = 10; // Convert integer number to binary format System.out.println(Integer.toBinaryString(a)); // to print number of 1's in the number a System.out.println(Integer.bitCount(a)); }} |
Output:
1010 2
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