将给定数组拆分为给定大小的块，并在必要时向最后一个块添加填充。

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


import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;


public class Main{

    public static void main(String[] argv) throws Exception{

        byte[] byteArray = new byte[]{34,35,36,37,37,37,67,68,69};

        int blocksize = 2;

        System.out.println(java.util.Arrays.toString(splitAndPad(byteArray,blocksize)));

    }

    /**

     * Splits the given array into blocks of given size and adds padding to the

     * last one, if necessary.

     * 

     * @param byteArray

     *            the array.

     * @param blocksize

     *            the block size.

     * @return a list of blocks of given size.

     */

    public static List<byte[]> splitAndPad(byte[] byteArray, int blocksize) {

        List<byte[]> blocks = new ArrayList<byte[]>();

        int numBlocks = (int) Math.ceil(byteArray.length

                / (double) blocksize);


        for (int i = 0; i < numBlocks; i++) {


            byte[] block = new byte[blocksize];

            Arrays.fill(block, (byte) 0x00);
            /*
            来 自*
             时代Java - N o w  J a v a . c o m
            */

            if (i + 1 == numBlocks) {

                // the last block

                int remainingBytes = byteArray.length - (i