Do you have practical experience using features and new capabilities introduced in Java 8?

Yes, Java 8 introduced important new features that significantly simplified and improved the code:

• Lambda expressions — allow writing compact anonymous functions, making it easier to work with functional interfaces.

• Stream API — provides a convenient way to process collections of data in a functional style (filtering, transforming, aggregating).

• Default methods in interfaces — enable adding method implementations in interfaces without breaking existing code.

• Optional — a class for handling the possible absence of a value, helping to avoid NullPointerException.

Example of using Stream and lambda:

import java.util.*;
import java.util.stream.*;

public class Example {
    public static void main(String[] args) {
        List<String> names = Arrays.asList("Anna", "Bob", "Charlie", "David");
        List<String> filtered = names.stream()
            .filter(name -> name.startsWith("A"))
            .map(String::toUpperCase)
            .collect(Collectors.toList());

        System.out.println(filtered); // [ANNA]
    }
}