Java tutorial
//package com.java2s; /* * Copyright (C) 2012 The Android 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.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.List; public class Main { /** Returns an immutable copy of {@code list}. */ public static <T> List<T> immutableList(List<T> list) { return Collections.unmodifiableList(new ArrayList<T>(list)); } /** Returns an immutable list containing {@code elements}. */ public static <T> List<T> immutableList(T... elements) { return Collections.unmodifiableList(Arrays.asList(elements.clone())); } }