Answers for "json to object java"

javascript object to json

var person={"first_name":"Tony","last_name":"Hawk","age":31};
var personJSONString=JSON.stringify(person);

js json to object

var jsonPerson = '{"first_name":"billy", "age":23}';
var personObject = JSON.parse(jsonPerson); //parse json string into JS object

how to convert json to java object

Jackson Data-bind depdendency that take care of 
Converting between 
JSON to Java Object 
and 
Java Object to JSON

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.12.0</version>
</dependency>

How To Convert Json To Java Object

I add GSON dependency in my POM --> It’s a json parser. That is
used to convert from java object to json and from json to java
object
SERIALIZATION: CONVERT JAVA OBJECT -> JSON
DE-SERIALIZATION: CONVERT JSON -> JAVA OBJECT