Java tutorial
//package com.java2s; /* * Copyright (C) 2015 The Workbench Open Source Project * * 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.*; public class Main { public static <T> List<T> subtract(final Collection<T> a, final Collection<T> b) { List<T> list = new ArrayList<T>(a); for (T element : b) { list.remove(element); } return list; } }