Count `1`s in a Binary Representation

Implement a method to count 1s in the binary representation of an integer.

Examples:

Input 1: 5 (Binary 101)
Output: 2
    
Input 2: 10 (Binary 1010)
Output: 2

Need a hand? Try out these hints, one at a time.

The key here is to convert an input integer to binary String by using Integer's built-in method and then count 1s.

1. Declare and initialize a counter variable to 0 inoreder to store the count of 1s in the binary representation of an input.

2. Obtain the binary representation of an input with the help of Integer's built-in method. i.e. Integer.toBinaryString(inputNum).

3. Traverse through each of the characters of binary String and increment the count if the charater is equal to '1'.

4. Return count.

public static int countNumberOfOnesInBinary(int inputNum) {
    



}

Java

Python

Count 1s in a Binary Representation