將包含Hashmap的數組的字符串轉換爲Arraylist

Question

我有包含Hasmap的Arraylist字符串。需要將其轉換爲Hashmap的Arraylist。

[ 
    { 
     created_by=null, 
     title=Hello, 
     description=Thisistestdescription, 
     category=English, 
     logo_url=null, 
     id=6, 
     url=null, 
     modified_by=null, 
     date_created=null, 
     date_modified=null, 
     category_id=2 
    }, 
    { 
     created_by=null, 
     title=Test1, 
     description=Thisistestdescription, 
     category=English, 
     logo_url=null, 
     id=7, 
     url=null, 
     modified_by=null, 
     date_created=null, 
     date_modified=null, 
     category_id=2 
    }, 
    { 
     created_by=null, 
     title=open, 
     description=Thisistestdescription, 
     category=English, 
     logo_url=null, 
     id=8, 
     url=null, 
     modified_by=null, 
     date_created=null, 
     date_modified=null, 
     category_id=2 
    } 
] 

Answer 1

要將ArrayList轉換爲hashmap，請遍歷ArrayList，並將值插入到HashMap中。

ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>(); 
     HashMap<String, String> n = new HashMap<String, String>(); 
     n.put("key1", "value1"); 
     n.put("key2", "value2"); 
     list.add(n); 

     HashMap<String, String> map = list.get(0); 

     String strArr[] = new String[map.size()]; 
     int i = 0; 
     for (HashMap<String, String> hash : list) { 
      for (String current : hash.values()) { 
       strArr[i] = current; 
       i++; 
      } 
     }