在子数组上划分给定数组

/**
 from
* N o w J a v a . c o m 
**/


//package com.nowjava;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;


public class Main {

    /**

     * Divides given array on sub arrays

     * 

     * @param arr

     *            the original array that be divided on sub arrays

     * @param subArrSize

     *            the size of each sub array

     * @return the java.util.List<Integer[]> of sub arrays

     */

    public static List<Integer[]> getSubarraysList(Integer[] arr,

            int subArrSize) {

        int arrLength = arr.length;

        List<Integer[]> arrList = new ArrayList<Integer[]>();

        int subarraysCount = (int) Math.ceil((double) arrLength

                / subArrSize);

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

            if (i == subarraysCount - 1) {

                Integer[] curArr = Arrays.copyOfRange(arr, i * subArrSize,

                        arrLength);

                arrList.add(curArr);

            } else {
            /* 
            *来 自
             时 代 J a v a