集册 Java实例教程 将给定数组合并到给定集合中。

将给定数组合并到给定集合中。

欢马劈雪     最近更新时间:2020-01-02 10:19:05

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将给定数组合并到给定集合中。

/*

 * Copyright 2002-2015 the original author or authors.

 *

 * 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.

 */

//package com.nowjava;/** 时 代 J a v a 公 众 号 提 供 **/

import java.util.*;


public class Main {

    public static void main(String[] argv) {

        Object array = "nowjava.com";

        Collection collection = java.util.Arrays.asList("asdf",

                "nowjava.com");

        mergeArrayIntoCollection(array, collection);

    }


    /**

     * Merge the given array into the given Collection.

     *

     * @param array      the array to merge (may be {@code null})

     * @param collection the target Collection to merge the array into

     */

    @SuppressWarnings("unchecked")

    public static <E> void mergeArrayIntoCollection(Object array,

            Collection<E> collection) {

        if (collection == null) {

            throw new IllegalArgumentException(

                    
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