JSOn-Simple-101

Question 1

What basically JSOn Simple uses internally to store the data?

Answer 1

Map & List

Question 2

What is the full package ?

Answer 2

org.json.simple.*

Question 3

What is the core object class?

Answer 3

JSONObject

Question 4

What is official toString method?

Answer 4

toJSONString()

Question 5

What we should use to write the json keys?

Answer 5

JSONArray

Question 6

How is JSONArray differs itself with simple arrays?

Answer 6

With JSONArray you can have only keys to come or Full JSONObject or Object to come in. need not to explicitly say the Type casting as we do in Array

Question 7

Say one e.g. for Put in JSONObejct with JSOnArray

Answer 7

JSONObject obj = new JSONObject();
obj.put(key, new Object());

JSONArray arr= new JSONArray();
arr.add("key1");

obj.put(“jkey”, arr);

So , put for JSONObject and add for JSONArray

Question 8

What is @SuppressWarnings(“unchecked”)

Answer 8

This is eclispe warning, as it generally applies where the class doesnot support generics. 
Like JSONObject  doesnot support generics

Question 9

What does JSONObejct extends ?

Answer 9

extends HashMap

Question 10

Which class will do the job of Parsing?

Answer 10

JSONParser

Question 11

What is the method that will do the parsing in JSONParser and what it takes in?

Answer 11

parse
JSONParser parser = new JSONParser()
parser.parse(takes anyting that ultimately gives a String)

like Reader orString or Stream*

Explicit casting is required as it gives an Object

For Array better to use JSONArray