JSON.simple Tutorial
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JSON.simple - JAVA Mapping
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JSON.simple - Using JSONValue
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Encoding Examples
JSON.simple - Encode JSONObject
JSON.simple - Encode JSONArray
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JSON.simple - Merging Objects
JSON.simple - Merging Arrays
Combination Examples
JSON.simple - Primitive, Object, Array
JSON.simple - Primitive, Map, List
Primitive, Object, Map, List
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JSON.simple - Customized Output
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JSON.simple Useful Resources
JSON.simple - Quick Guide
JSON.simple - Useful Resources
JSON.simple - Discussion

JSON.simple - Primitive, Map, List Combination

Using JSONValue object, we can create a JSON which comprises of primitives, Map and List.

Following example illustrates the above concept.

Example

import java.io.IOException;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.json.simple.JSONValue;

class JsonDemo {
   public static void main(String[] args) throws IOException {
      Map m1 = new LinkedHashMap(); 
      m1.put("k11","v11"); 
      m1.put("k12","v12"); 
      m1.put("k13", "v13");

      List l1 = new LinkedList();
      l1.add(m1);
      l1.add(new Integer(100));

      String jsonString = JSONValue.toJSONString(l1);
      System.out.println(jsonString);
   }
}

Output

[{"k11":"v11","k12":"v12","k13":"v13"},100]