Here you can find the source of combineHashCodes(int hashCode1, int hashCode2)
public static int combineHashCodes(int hashCode1, int hashCode2)
//package com.java2s; //License from project: Open Source License public class Main { /**//from ww w. j a v a 2 s . com * Combines two hash codes to make a new one. */ public static int combineHashCodes(int hashCode1, int hashCode2) { return hashCode1 * 17 + hashCode2; } }