java 中 List<String> 拆分成 带标记的 List<String>

 

public class TransList {


private List<String> getMobiles(List<String> destmobile,int spiltNum,String tag){
    	List<String> mobiles = new ArrayList<String>();
    	StringBuffer ms = new StringBuffer("");
    	for(int i = 1;i <= destmobile.size();i++) {
    		ms.append(destmobile.get(i-1));
    		if(i == destmobile.size()||(i != 1&&i%spiltNum == 0)) {
    			mobiles.add(ms.toString());
    			ms = new StringBuffer("");
    		}else {
    			ms.append(tag);
    		}
    		
    	}
    	return mobiles;
    }
public static void main(String[] args) {
    	
    	Adapte ad = new Adapte();
    	List<String> destmobileList = new ArrayList<String>();
    	destmobileList.add("1");
    	destmobileList.add("2");
    	destmobileList.add("3");
    	destmobileList.add("4");
    	destmobileList.add("5");
    	destmobileList.add("6");
    	destmobileList.add("7");
    	destmobileList.add("8");
    	destmobileList.add("9");
    	destmobileList.add("10");
    	destmobileList.add("11");
    	destmobileList.add("12");
    	destmobileList.add("13");
    	destmobileList.add("14");
    	destmobileList.add("15");
    	destmobileList.add("16");
    	destmobileList.add("17");
    	destmobileList.add("18");
    	destmobileList.add("19");
    	destmobileList.add("20");
    	destmobileList.add("21");
    	List<String> list = ad.getMobiles(destmobileList,5,",");
    	for(int i = 0;i < list.size();i++) {
    		System.out.println(list.get(i));
    	}
}

}

 

 

print :

1,2,3,4,5
6,7,8,9,10
11,12,13,14,15
16,17,18,19,20
21