Java generate JSON file

To Generate the JSON object of below formate using json.jar

{
    "employees": {
        {"firstName": "John", "lastName": "Doe"}, 
        {"firstName": "Anna", "lastName": "Smith"}, 
        {"firstName": "Peter", "lastName": "Jones"}
    },
    "manager": [
        {"firstName": "John", "lastName": "Doe"}, 
        {"firstName": "Anna", "lastName": "Smith"}, 
        {"firstName": "Peter", "lastName": "Jones"}
    ], 
}

import org.json.JSONArray;
import org.json.JSONObject;

public JSONObject getJsonResponse(){

    JSONObject employees = new JSONObject();
    employees.put(getPerson("John","Doe"));
    employees.put(getPerson("Anna","Smith"));
    employees.put(getPerson("Peter","Jones"));

JSONArray managers = new JSONArray();
    managers.put(getPerson("John","Doe"));
    managers.put(getPerson("Anna","Smith"));
    managers.put(getPerson("Peter","Jones"));

   JSONObject response= new JSONObject();
    response.put("employees", employees );
    response.put("manager", managers );
    return response;

}

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To Generate the JSON object of below formate using Gson.jar

[

  {

    "staf": [

      {

        "emp": [

          {

            "dep1": 130,

            "empid2": 370,

            "sec": 2600

          }

        ]

      },

      {

        "maganer": [

          {

            "dep": 190,

            "empid": 5850,

            "sec": 190

          }

        ]

      }

 

    ]

  }

]

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import com.google.gson.Gson;

import com.google.gson.JsonElement;

import com.google.gson.JsonNull;

import com.google.gson.JsonObject;

import com.google.gson.JsonPrimitive;

 //Part 1

    Map<String ,Object> map1 = new HashMap<>();

    map1.put("dep1", 130);

    map1.put("empid2", 370);

    map1.put("sec", 2600);

    List<Map<String ,Object>> inventoriesList = new ArrayList<>();

    inventoriesList.add(map1);

    Map<String,List< Map<String ,Object> > > inventoriesMap = new HashMap<>();

    inventoriesMap.put("match", inventoriesList);

    //Part 2

    Map<String ,Object> map2 = new HashMap<>();

    map2.put("dep", 5850);

    map2.put("empid", 190);

    map2.put("sec", 190);

    List<Map<String ,Object>> highPerformanceList = new ArrayList<>();

    highPerformanceList.add(map2);

    Map<String,List< Map<String ,Object> > > highPerformanceMap = new HashMap<>();

    highPerformanceMap.put("overunder", highPerformanceList);

    

    //Collect

    List<Map<String, List<Map<String, Object>>>> ListMapTermMapList = new ArrayList< Map<String,List< Map<String ,Object> > > >();

    ListMapTermMapList.add(inventoriesMap);

    ListMapTermMapList.add(highPerformanceMap);

    

    Map <String, List<Map<String,List<Map<String,Object>>>>> Od= new HashMap<>();

    Odds.put("odds", ListMapTermMapList);

    

    List<Map <String, List<Map<String,List<Map<String,Object>>>>>> oddsfinal= new ArrayList<Map <String, List<Map<String,List<Map<String,Object>>>>>>();

    oddsfinal.add(Od);

    

    //Format to Json

    System.out.println(new Gson().toJson(oddsfinal));