(essence) converts JSON arrays and objects into lists and maps (dialogue between dragons and New)

It's easy to convert Java standard data structures ArrayList and HashMap to JSON objects and arrays

Only jsonarray.fromobject (obj) is required, or jsonobject.fromobject (obj);

Convert a JSON object to a map (must use traversal)

     Public Static voidMain (string[] args) {HashMap<string, object> map =NewHashmap<string, object>(); Map.put ("Name", "Tom"); Map.put ("Age", 12); Jsonobject obj=jsonobject.fromobject (map); System.out.println (obj);//{"name": "Tom", "Age":HashMap<string, object> map1=NewHashmap<string, object>(); Iterator it=Obj.keys ();  while(It.hasnext ()) {String key=(String) it.next (); Object value=Obj.get (key);                  Map1.put (key, value); } System.out.println (MAP1);//{name=tom, age=12}System.out.println (Jsonobject.fromobject (MAP1));//{"name": "Tom", "Age":}

 Public Static voidMain (string[] args) {ArrayList<String> list =NewArraylist<string>(); List.add ("Tom"); List.add ("Lisa"); SYSTEM.OUT.PRINTLN (list);//[Tom, Lisa]Jsonarray array =jsonarray.fromobject (list); SYSTEM.OUT.PRINTLN (array);//["Tom", "Lisa"]ArrayList<String> List1 =NewArraylist<string>(); Iterator<String> it =List.iterator ();  while(It.hasnext ()) {List1.add (It.next ()); } System.out.println (List1);//[Tom, Lisa]}

(essence) converts JSON arrays and objects into lists and maps (dialogue between dragons and New)