javax.json: Create json and print

Step 1: Define JsonObject instance by setting necessary properties.

JsonObject json = Json.createObjectBuilder()
.add("firstName", "Ram")
.add("lastName", "Gurram")
.add("id", 32)
.add("male", false)
.add("dateOfBirth", new SimpleDateFormat("DD/MM/YYYY").format(date)).build();

 

Step 2: Conver JsonObject to string.

String result = json.toString();

 

Find the below working application.

 

JsonCreateDemo.java

package com.sample.app;

import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.ZoneId;
import java.util.Date;

import javax.json.Json;
import javax.json.JsonObject;

public class JsonCreateDemo {

	public static void main(String args[]) {
		LocalDate dateOfBirth = LocalDate.of(1985, 1, 10);
		Date date = Date.from(dateOfBirth.atStartOfDay(ZoneId.systemDefault()).toInstant());

		JsonObject json = Json.createObjectBuilder()
							.add("firstName", "Ram")
							.add("lastName", "Gurram")
							.add("id", 32)
							.add("male", false)
							.add("dateOfBirth", new SimpleDateFormat("DD/MM/YYYY").format(date)).build();
		
		String result = json.toString();

		System.out.println(result);
	}

}

Output

{"firstName":"Ram","lastName":"Gurram","id":32,"male":false,"dateOfBirth":"10/01/1985"}

 

 

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