javaMap<String,Object> map =newHashMap<>(); // 添加一些键值对到map中 Iterator<Map.Entry<String,Object>> iterator = map.entrySet().iterator(); while (iterator.hasNext()) { Map.Entry<String,Object> entry = iterator.next(); System.out.println("Key: " + entry.getKey() +", Value: "...
在Java中,遍历Map<String, Object>有多种方法。以下是一些常见的方法,包括使用for-each循环、Iterator和Java 8的Stream API。 1. 使用for-each循环和Map.Entry接口遍历Map 首先,创建一个Map<String, Object>实例并初始化: java Map<String, Object> map = new HashMap<>(); ...
Map<String,Object> map = iterator.next(); Iterator<Map.Entry<String,Object>> entryIterator = map.entrySet().iterator(); while (entryIterator.hasNext()) { Map.Entry<String,Object> entry = entryIterator.next(); System.out.println("Key: " + entry.getKey() +", Value: " + entry.getVal...
public static void main(String[] args) { // TODO Auto-generated method stub List<Map<String,Object>> lstp = new ArrayList<>(); Map<String,Object> map1 = new HashMap<>(); map1.put("11", "aa"); map1.put("21", "ab"); map1.put("13", "cc"); Map<String,Object> map2 =...
Iterator entries = myMap.entrySet().iterator();while (entries.hasNext()) { Entry thisEntry = (Entry) entries.next(); Object key = thisEntry.getKey(); Object value = thisEntry.getValue(); // ...} 条目顺序取决于特定的Map实现。一般而言，迭代映射（Map的标准翻译，叫做表，但...
public static void main(String[] args) { HashMap<String, Object> map = new HashMap<>(); map.put("1", "1"); map.put("2", "2"); Set<Map.Entry<String, Object>> entries = map.entrySet(); for (Map.Entry<String, Object> entry : entries) { ...
问Java-Map<String，List<Object>>遍历列表并跳过N个条目ENi = [1,2,3] o = [4,5,6] for...
先遍历List 对于每一个Map值，要获取String的话，就是要获取它的key值集合，LZ可以看一下api，有这个方法的，貌似得到的结果是一个set集合，遍历这个set集合便可以得到每一个String值，从而也可以获取到对应的Object 你
for(Map<String,Object> map : list){ System.out.println("Map:")for(Map.Entry<String,Object> entry : map.entrySet()){ System.out.println(" "+entry.getKey()+":"+entry.getValue());} }
}for(Map<String, Object> map : listMaps) {for(String s : map.keySet()) {//一般用这个遍历,map.get("key")获取valSystem.out.print(map.get(s) +" "); } } System.out.println(); System.out.println("===");for(inti=0; i < listMaps.size(); i++) { Map<String, Object> map...