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readJsonEx.java
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readJsonEx.java
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import java.io.*;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
public class readJsonEx
{
@SuppressWarnings("unchecked")
public static void main(String[] args)
{
//JSON parser object to parse read file
JSONParser jsonParser = new JSONParser();
try (FileReader reader = new FileReader("employees.json"))
{
//Read JSON file
Object obj = jsonParser.parse(reader);
JSONArray employeeList = (JSONArray) obj;
System.out.println(employeeList);
//Iterate over employee array
employeeList.forEach( emp -> parseEmployeeObject( (JSONObject) emp ) );
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (ParseException e) {
e.printStackTrace();
}
}
private static void parseEmployeeObject(JSONObject employee)
{
//Get employee object within list
JSONObject employeeObject = (JSONObject) employee.get("employee");
String firstName = (String) employeeObject.get("firstName");
System.out.println(firstName);
String lastName = (String) employeeObject.get("lastName");
System.out.println(lastName);
String company = (String) employeeObject.get("company");
System.out.println(company);
String designation = (String) employeeObject.get("designation");
System.out.println(designation);
String salary = (String) employeeObject.get("salary");
System.out.println(salary);
}
}