将一个数组按照固定大小进行拆分成数组

/**
 * ArraySplit.java
 * Copyright(C) 2014
 * creator:cuiran 2014-8-4 上午10:39:28
 */
package com.udpdemo.test2;

import java.util.ArrayList;
import java.util.List;

/**
 *  
 * @author cuiran
 * @version 1.0.0
 */
public class ArraySplit {

	/**
	 * 2014-8-4 上午10:39:28
	 * @param args
	 * 
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		  int[] ary = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};//要分割的数组
		  int splitSize = 5;//分割的块大小
		  Object[] subAry = splitAry(ary, splitSize);//分割后的子块数组
		   
		  for(Object obj: subAry){//打印输出结果
			  int[] aryItem = (int[]) obj;
			   for(int i = 0; i < aryItem.length; i++){
				   System.out.print(aryItem[i] + ", ");
			   }
			   System.out.println();
		  }

	}

	/**
	 * splitAry方法<br>
	 * 2014-8-4 上午10:45:36
	 * @param ary 要分割的数组
	 * @param subSize 分割的块大小
	 * @return
	 *
	 */
	private static Object[] splitAry(int[] ary, int subSize) {
		  int count = ary.length % subSize == 0 ? ary.length / subSize: ary.length / subSize + 1;

		  List<List<Integer>> subAryList = new ArrayList<List<Integer>>();

		  for (int i = 0; i < count; i++) {
		   int index = i * subSize;
		   List<Integer> list = new ArrayList<Integer>();
		   int j = 0;
			   while (j < subSize && index < ary.length) {
				    list.add(ary[index++]);
				    j++;
			   }
		   subAryList.add(list);
		  }
		  
		  Object[] subAry = new Object[subAryList.size()];
		  
		  for(int i = 0; i < subAryList.size(); i++){
			   List<Integer> subList = subAryList.get(i);
			   int[] subAryItem = new int[subList.size()];
			   for(int j = 0; j < subList.size(); j++){
				   subAryItem[j] = subList.get(j).intValue();
			   }
			   subAry[i] = subAryItem;
		  }
		  
		  return subAry;
		 }
}