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I am trying to add string values in JsonArray and after that create Json String to send it on server.
I was searching on google but I couldn't find anything helpful. Could anyone tell me how to this? Thanks
JSONArray list = new JSONArray();
list.put("Hello");
list.put("Hey");
After that I want create JSONString
409
We can also add a JSONArray to JSONObject. We need to add a few items to an ArrayList first and pass this list to the put() method of JSONArray class and finally add this array to JSONObject using the put() method.
How do I add a list to a JSON object? JSONObject obj = new JSONObject(); List sList = new ArrayList (); sList. add(“val1”); sList. add(“val2”); obj.
JSONArray interventions; if(intervention == null) interventions=jsonObject. optJSONArray("intervention"); This will return you an array if it's a valid JSONArray or else it will give null .
Create a JSON array by instantiating the JSONArray class and add, elements to the created array using the add() method of the JSONArray class.
Simple:
JSONArray list = new JSONArray();
list.put("Hello");
list.put("Hey");
String jsonString = list.toString()
according to docs it should result in "["Hello", "Hey"]"
157
just use
list.toString(2)
this will give you the string in json
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