Enable JSON pretty print using Jackson API

package com.java2novice.json.examples;

import java.io.IOException;

import org.codehaus.jackson.map.ObjectMapper;

import com.java2novice.json.models.Employee;

public class JsonPrettyPrintEx {

	public static void main(String a[]){
		
		Employee emp = new Employee();
		ObjectMapper mapperObj = new ObjectMapper();
		
		try {
			// get Employee object as a json string
			String jsonStr = mapperObj.writeValueAsString(emp);
			System.out.println("json output in compact mode:\n");
			System.out.println(jsonStr);
			String jsonPrettyStr 
					= mapperObj.writerWithDefaultPrettyPrinter().writeValueAsString(emp);
			System.out.println("\n\njson output in pretty print mode:\n");
			System.out.println(jsonPrettyStr);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

json output is in compact mode:

{"empId":1016,"name":"Nataraja Gootooru","designation":"Programmer","department":"Java2Novice","salary":20000}


json output is in pretty print mode:

{
  "empId" : 1016,
  "name" : "Nataraja Gootooru",
  "designation" : "Programmer",
  "department" : "Java2Novice",
  "salary" : 20000
}