将所有数组合并为单个数组。

/** 
来 自 
时 代      J a v a   公   众 号 - nowjava.com
**/

//package com.nowjava;

import java.lang.reflect.Array;


public class Main {

    /**

     * Merged all arrays into a single array.

     */

    @SuppressWarnings("unchecked")

    public static <T> T[] merge(final T[]... arrays) {

        // Compute total size

        Class<T> type = null;

        int size = 0;

        for (final T[] array : arrays) {

            size += array.length;

            if (type == null && array.length > 0) {

                type = (Class<T>) array[0].getClass();

            }

        }


        // Copy all arrays/** 来自 N  o w  J a v a . c o m**/

        final T[] merged = (T[]) Array.newInstance(type, size);


        int index = 0;

        for (