cfnr.net
当前位置:首页 >> jAvA list<mAp> 排序 >>

jAvA list<mAp> 排序

List dataList = new ArrayList(); Map dataMap = new HashMap(); dataMap.put("interfacetime", "2006-12-11 00:37:38"); dataMap.put("ip", "172.30.27.33"); dataMap.put("type", "windows"); dataMap.put("patrolagenttime", "2006-12-11 0...

Set keySet = map.keySet(); for(Integer key : keySet) { map.get(key); }

private static List stringGroupO(String[] strs){ List list1 = new ArrayList(); List list2 = new ArrayList(); for(int i=0;i

Map map = new HashMap(); Integer[] ks = new Integer[50]; Random rand = new Random(); for (int i = 0; i < ks.length; i++) {// 赋值50个随机数 ks[i] = rand.nextInt(6) + 30; } for (int i = 0; i < ks.length; i++) {// 统计个数 if (ma...

List finishMapList = new ArrayList(); Map map = new HashMap(); map.put("key", "A"); map.put("key", "A"); finishMapList.add(map); map = new HashMap(); //map要重新new不然还是上一个map map.put("key", "B"); map.put("key", "B"); fin...

Map map = new HashMap(); for(Meet meet:mtList){ String key = meet.getDate(); if(map.get(key)==null){ List lst = new ArrayList(); lst.add(meet); map.put(key, lst); }else{ map.get(key).add(meet); } } 最后的结果是每一天对应一个list

import java.util.*; public class Test{ static List list = new ArrayList(); static Map m1 = new HashMap(); static Map m2 = new HashMap(); public static void main(String[] args){ init(); List resAll = new ArrayList(); Set allKey ...

data.ToArray();

你说的按要求排序,应该是有一些自定义规则排序吧,假如要通过值来排序可以用以下方法: Java代码 public static void main(String[] args) { Map map = new HashMap(); map.put("lisi", 5); map.put("lisi1", 1); map.put("lisi2", 3); map.put...

List list=new ArrayList(); Map map=new HashMap(); for(int i=0;i

网站首页 | 网站地图
All rights reserved Powered by www.cfnr.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com