Junior — Middle

Can you explain the purpose of the @Data annotation from Lombok and how it simplifies class development in Java?

sobes.tech AI

Answer from AI

The @Data annotation from the Lombok library automatically generates the following methods for a class:

Getters and setters for all fields,
toString(), equals(), and hashCode() methods,
A default constructor,
A constructor with parameters for all final fields.

This significantly reduces the boilerplate code typically written manually in Java classes for data storage (POJO). Thanks to @Data, the code becomes cleaner and easier to maintain.

Example:

import lombok.Data;

@Data
public class User {
    private String name;
    private int age;
}

In this example, Lombok will generate all the necessary methods, and the developer does not need to write them manually.

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