Here you can find the source of equalUnsorted(List
public static boolean equalUnsorted(List<String> list1, List<String> list2)
//package com.java2s; /**/*from w ww .j a va 2 s.c om*/ * * dry-redis: In-memory pure java implementation to Redis * Copyright (c) 2016, Sandeep Gupta * * http://sangupta.com/projects/dry-redis * * 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.List; public class Main { public static boolean equalUnsorted(List<String> list1, List<String> list2) { if (list1 == null || list2 == null) { return false; } for (String item : list2) { if (!list1.remove(item)) { return false; } } if (list1.isEmpty()) { return true; } return false; } }