java load json file

1import net.sf.json.JSONObject;
2import net.sf.json.JSONSerializer;
3import org.apache.commons.io.IOUtils; 
4
5    public class JsonParsing {
6
7        public static void main(String[] args) throws Exception {
8            InputStream is = 
9                    JsonParsing.class.getResourceAsStream( "sample-json.txt");
10            String jsonTxt = IOUtils.toString( is );
11
12            JSONObject json = (JSONObject) JSONSerializer.toJSON( jsonTxt );        
13            double coolness = json.getDouble( "coolness" );
14            int altitude = json.getInt( "altitude" );
15            JSONObject pilot = json.getJSONObject("pilot");
16            String firstName = pilot.getString("firstName");
17            String lastName = pilot.getString("lastName");
18
19            System.out.println( "Coolness: " + coolness );
20            System.out.println( "Altitude: " + altitude );
21            System.out.println( "Pilot: " + lastName );
22        }
23    }
24

1package com.howtodoinjava.demo.jsonsimple;
2 
3import java.io.FileWriter;
4import java.io.IOException;
5 
6import org.json.simple.JSONArray;
7import org.json.simple.JSONObject;
8 
9public class WriteJSONExample
10{
11    @SuppressWarnings("unchecked")
12    public static void main( String[] args )
13    {
14        //First Employee
15        JSONObject employeeDetails = new JSONObject();
16        employeeDetails.put("firstName", "Lokesh");
17        employeeDetails.put("lastName", "Gupta");
18        employeeDetails.put("website", "howtodoinjava.com");
19         
20        JSONObject employeeObject = new JSONObject(); 
21        employeeObject.put("employee", employeeDetails);
22         
23        //Second Employee
24        JSONObject employeeDetails2 = new JSONObject();
25        employeeDetails2.put("firstName", "Brian");
26        employeeDetails2.put("lastName", "Schultz");
27        employeeDetails2.put("website", "example.com");
28         
29        JSONObject employeeObject2 = new JSONObject(); 
30        employeeObject2.put("employee", employeeDetails2);
31         
32        //Add employees to list
33        JSONArray employeeList = new JSONArray();
34        employeeList.add(employeeObject);
35        employeeList.add(employeeObject2);
36         
37        //Write JSON file
38        try (FileWriter file = new FileWriter("employees.json")) {
39 
40            file.write(employeeList.toJSONString());
41            file.flush();
42 
43        } catch (IOException e) {
44            e.printStackTrace();
45        }
46    }
47}
48