Here you can find the source of bitDifference(String s1, String s2)
public static final int bitDifference(String s1, String s2)
//package com.java2s; /*//from w ww. ja va 2 s .c om * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ public class Main { public static final int bitDifference(String s1, String s2) { int sum = 0; for (int i = 0; i < s1.length(); i++) { if (s1.charAt(i) != s2.charAt(i)) sum++; } return sum; } public static final int bitDifference(String y1[], String y2[]) { int sum = 0; for (int i = 0; i < y1.length; i++) { if (!y1[i].equals(y2[i])) sum++; } return sum; } public static final int bitDifference(int y1[], int y2[]) { int sum = 0; for (int i = 0; i < y1.length; i++) { if (y1[i] != y2[i]) sum++; } return sum; } }