Junior — Middle

How can data in JSON format be converted into a Java object?

sobes.tech AI

Answer from AI

Libraries such as Gson or Jackson are commonly used to convert JSON into Java objects.

Example using Gson:

import com.google.gson.Gson;

class User {
    String name;
    int age;
}

public class JsonToObjectExample {
    public static void main(String[] args) {
        String json = "{\"name\": \"Ivan\", \"age\": 30}";
        Gson gson = new Gson();
        User user = gson.fromJson(json, User.class);
        System.out.println(user.name + ", " + user.age);
    }
}

In this example, the JSON string is converted into a User class object using the fromJson method. Similarly, Jackson can be used with the ObjectMapper class.

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