4.Articles 2.0

package fund.Articles2;

import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Scanner;
import java.util.function.Predicate;

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

        List<Articles2> articles = new ArrayList<>();
        int n = Integer.parseInt(scanner.nextLine());
        for (int i = 0; i < n; i++) {
            String[] input = scanner.nextLine().split(", ");
            String title = input[0];
            String content = input[1];
            String author = input[2];
            Articles2 article = new Articles2(title, content, author);
            articles.add(article);
        }
        String choice = scanner.nextLine();

        Comparator<Articles2> comp = null;
        switch (choice) {
            case "title":
                comp = Comparator.comparing(Articles2::getTitle);
                break;
            case "content":
                comp = Comparator.comparing(Articles2::getContent);
                break;
            case "author":
                comp = Comparator.comparing(Articles2::getAuthor);
                break;
        }
        articles.sort(comp);
        for (Articles2 a : articles) {
            System.out.println(a.infoArticle());
        }

    }
}