Here you can find the source of modulus(int a, int b)
static public int modulus(int a, int b)
//package com.java2s; /**/*from w ww . ja v a2 s. c o m*/ * Copyright 2015, Emory University * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { static public int modulus(int a, int b) { return (a % b + b) % b; } static public int modulus(long a, int b) { return ((int) (a % b) + b) % b; } }