Hamming distance

package maricka.kolokolova;

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		System.out.println("Input first number:");
		int a = sc.nextInt();
		System.out.println("Input second number:");
		int b = sc.nextInt();

		String str = Integer.toBinaryString(a ^ b);
		String strA = Integer.toBinaryString(a);
		String strB = Integer.toBinaryString(b);

    System.out.println("Your binaries number:" + strA +" and "+ strB);
		
		System.out.println("Hamming distance is: " + hemming(str));
		sc.close();
	}

	static int hemming(String str) {
		char[] mas = str.toCharArray();
		int hem = 0;
		for (int i = 0; i < mas.length; i++) {
			if (mas[i] == '1') {
				hem++;
			}
		}
		return hem;
	}

}