how to use JSONobject in java code example

Example 1: new jsonobject java

String message;
JSONObject json = new JSONObject();
json.put("name", "student");

JSONArray array = new JSONArray();
JSONObject item = new JSONObject();
item.put("information", "test");
item.put("id", 3);
item.put("name", "course1");
array.add(item);

json.put("course", array);

message = json.toString();

// message
// {"course":[{"id":3,"information":"test","name":"course1"}],"name":"student"}

Example 2: JSONObject java

import org.json.simple.JSONObject;

class JsonEncodeDemo {

   public static void main(String[] args) {
      JSONObject obj = new JSONObject();

	    inputJSON.put("subscriberName", "subscriber");
	    inputJSON.put("msisdn","7055389495");

      System.out.print(obj);
   }
}

Example 3: org.json.jsonobject to java object

JSONObject jsonObject = //...
JsonNode jsonNode = convertJsonFormat(jsonObject);
ObjectMapper mapper = new ObjectMapper();
MyPojoClass myPojo = mapper.readValue(new TreeTraversingParser(jsonNode), MyPojoClass.class);