Java tutorial
//package com.java2s; /** * Copyright 2010 JBoss Inc * * 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. */ import java.util.Iterator; import java.util.List; public class Main { public static int hashCode(List list) { if (list == null) { return 0; } final int prime = 31; int result = 1; for (Iterator it = list.iterator(); it.hasNext();) { result = prime * result + it.next().hashCode(); } return result; } }