Unique Usernames

package SetsAndMaps3;

import java.util.LinkedHashSet;
import java.util.Scanner;
import java.util.Set;

public class UniqueUsernames {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        Set<String> user = new LinkedHashSet<>(); //запазваме реда на добавяне

        int countUsernames = Integer.parseInt(scanner.nextLine());

        for (int count = 1; count <= countUsernames; count++) {
            String username = scanner.nextLine();
            user.add(username);
        }

        user.forEach(System.out::println);

    }
}