java将list分为指定大小的新集合

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

public class JayCommonUtil {

/**
* 按指定大小，分隔集合，将集合按规定个数分为n个部分
*
* @param list
* @param len
* @return
*/
public static List<List<String>> splitList(List<String> list, int len) {
if (list == null || list.size() == 0 || len < 1) {
return null;
}

List<List<String>> result = new ArrayList<List<String>>();

int size = list.size();
int count = (size + len - 1) / len;

for (int i = 0; i < count; i++) {
List<String> subList = list.subList(i * len, ((i + 1) * len > size ? size : len * (i + 1)));
result.add(subList);
}
return result;
}

}