How to get different types of values ​​from JSON object in Java?

A JSONObject is an unordered collection of key-value pairs and parses a text string to generate something like map object. A JSONObject has several important methods to display different types of values, such as the getString() method is used to get the string associated with the key string, getInt() method is used to get the integer value associated with the key, getDouble() method is used to get the double value associated with the key, getBoolean() method is used to get the double value associated with the key The associated boolean value.

Example

import org.json.*;
public class JSONObjectTypeValuesTest {
   public static void main(String[] args) throws JSONException {
      JSONObject jsonObj = new JSONObject(
         "{" +
            "Name : Adithya," +
            "Age : 22, " +
            "Salary: 10000.00, " +
            "IsSelfEmployee: false " +
         "}"
      );
      System.out.println(jsonObj.getString("Name")); // returns string
      System.out.println(jsonObj.getInt("Age")); // returns int
      System.out.println(jsonObj.getDouble("Salary")); // returns double
      System.out.println(jsonObj.getBoolean("IsSelfEmployee")); // returns true/false
   }
}

Output

Adithya
22
10000.0
false

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