1.List<Map<String,String>>的遍历: 1 2 3 4 5 6 7 8 9 10 11 12 Map<String,String> map = new HashMap<String, String>(); map.put("1", "fds"); map.put("2", "valu"); List<Map<String, String>> list = new ArrayList<Map<String, String>>(); list.add(map); for ...
for (Map<String,Object> map : list) { for (Map.Entry<String,Object> entry : map.entrySet()) { System.out.println("Key: " + entry.getKey() +", Value: " + entry.getValue()); } } 使用Iterator javaList<Map<String,Object>> list =// 初始化你的List Iterator<Map<String,Object>> ...
public static void main(String[] args) { // List的三种遍历方式: listTest(); System.out.println("---方法分割---"); //Map的三种遍历方式: mapTest(); } public static void mapTest() { HashMap<String, String> map = new HashMap<>(); map.put("孙悟空", "老大"); map.put("猪八戒...
2. Map<String,List<Map<String, Object>>> package com.example.democrud.democurd.Prototype.demo01; import java.util.*; public class demo6 { //Map<String,List<Map<String, Object>>> public static void main(String[] args) { //原数据 Map<String, List<Map<String, Object>>> friend = fri...
List的三种遍历方式: public class TestList { publicstaticvoidmain(String[]args){List<String>list=newArrayList<>();list.add("孙悟空");list.add("唐三藏");list.add("猪八戒");list.add("沙悟净");StringlistString=list.toString();System.out.println(listString);Integersize=list.size();for(inti...
java中遍历list可以使用keyset来遍历，示例如下：Map<String,Object> map = new HashMap<String, String>(); map.put("1", "fds"); map.put("2", "valu"); List<Map<String, String>> list = new ArrayList<Map<String, String>>(); list.add(map); for (Map<String,...
* */ Iterator<Map.Entry<String,String>>it=pets.entrySet().iterator();while(it.hasNext()){ Map.Entryentry=it.next();//获得map中的每一个键值对 System.out.println(entry);name=entry.getValue().toString();System.out.println(name);} //list遍历 Listl=newArrayList();l.add("a");...
假设list是List<Map<String,String>> for (Map<String,String> m : list) { for (String key : m.keySet()) { System.out.println("Key = " + key); } //遍历map中的值 for...
print i[k],o[v] 结果： 123 456 abc def ＝＝＝遍历List＝＝＝ list = ['html', 'js'...
遍历List<Map(String,Object)>的结果集; Map map = new HashMap(); map.put("key1", "value1"); map.put("key2", "value2"); List<Map<String,object>> list = new ArrayList>(); list.add(map); for (Map<Strirng,Object> m : list) { ...