JSONObject: Convert java object to json string

By passing Java object to JSONObject constructor, you can construct JSONObject from a java object.

Example

JSONObject jsonObject = new JSONObject(emp);

Employee.java

package com.sample;

public class Employee {
 private String name;
 private String organization;
 private int id;

 
 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

 public String getOrganization() {
  return organization;
 }

 public void setOrganization(String organization) {
  this.organization = organization;
 }

 public int getId() {
  return id;
 }

 public void setId(int id) {
  this.id = id;
 }

}

App.java

package com.sample;

import org.json.JSONObject;

public class App {

 public static void main(String args[]) {
  Employee emp = new Employee();
  emp.setId(123);
  emp.setName("Krishna");
  emp.setOrganization("ABC Corporation");

  JSONObject jsonObject = new JSONObject(emp);

  System.out.println("name : " + jsonObject.get("name"));
  System.out.println("id : " + jsonObject.get("id"));
  System.out.println("organization : " + jsonObject.get("organization"));
  
  System.out.println("Json String : " + jsonObject);

 }
}

Output

name : Krishna

id : 123

organization : ABC Corporation

Json String : {"organization":"ABC Corporation","name":"Krishna","id":123}

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