将对象添加到数组中。

//时代Java公众号 - N o w J a  v a . c o m 提供

/*

 * Copyright 2004-2010 the Seasar Foundation and the Others.

 *

 * 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;

import java.lang.reflect.Array;


public class Main {

    /**

     * Adds the object to the array.

     * 

     * @param <T>

     *            the type

     * @param array

     *            the array

     * @param obj

     *            the object

     * @return the added array

     */

    @SuppressWarnings("unchecked")

    public static <T> T[] add(T[] array, T obj) {

        if (array == null && obj == null) {

            return null;

        }

        Class<?> clazz = obj != null ? obj.getClass() : array.getClass()

                .getComponentType();

        int length = array != null ? array.length : 0;

        T[] newArray = (T[