Java Count of Equal Bit Pairs

import java.util.Scanner;


public class CountOfEqualBitPairs {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int num = input.nextInt();
        char[] numBinary = String.format("%10s", Integer.toBinaryString(num)).toCharArray();

        int count = 0;
        int length = numBinary.length;

        for (int i = 0; i < numBinary.length; i++) {
            if (numBinary[i] == 1) {
                length = i;
                break;
            }
        }

        for (int i = length; i < numBinary.length; i++) {
            if (numBinary[i] == numBinary[i + 1]) {
                count++;
            }
        }

        System.out.println(count);
    }

}