Do you have experience using the Optional class in your projects?

Yes, the Optional class in Java is used to explicitly represent a value that may be present or absent (null). It helps to avoid NullPointerException and makes the code more readable.

Example of usage:

import java.util.Optional;

public class Example {
    public static Optional<String> findNameById(int id) {
        if (id == 1) {
            return Optional.of("Alice");
        } else {
            return Optional.empty();
        }
    }

    public static void main(String[] args) {
        Optional<String> name = findNameById(2);
        // Safely handle the absence of a value
        name.ifPresentOrElse(
            n -> System.out.println("Name: " + n),
            () -> System.out.println("Name not found")
        );
    }
}

In projects, I used Optional for methods that may return a value or not, which improves handling of missing data and reduces the likelihood of errors.