Article

package ObjectsAndClassesExercise;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;

public class Articles2 {
    private String title;
    private String content;
    private String author;

    public Articles2(String title, String content, String author) {
        this.title = title;
        this.content = content;
        this.author = author;
    }

    public String getTitle() {
        return title;
    }

    public String getContent() {
        return content;
    }

    public String getAuthor() {
        return author;
    }

    @Override
    public String toString() {
        return String.format("%s - %s: %s",this.title,this.content,this.author);
    }

    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        List<Articles2> articles2List = new ArrayList<>();

        int n = Integer.parseInt(reader.readLine());

        while (n-- > 0){
            String[] tokens = reader.readLine().split(", ");
            String title = tokens[0];
            String content = tokens[1];
            String author = tokens[2];

            Articles2 articles2 = new Articles2(title,content,author);
            articles2List.add(articles2);
            if (n == 0){
                if (title.equals("title")){
                    articles2List.stream().sorted((a,a1) -> a.getTitle().compareTo(a1.getTitle()))
                            .forEach(p -> System.out.println(p.toString()));
                } else if (title.equals("content")){
                    articles2List.stream().sorted(Comparator.comparing(Articles2::getContent))
                            .forEach(p -> System.out.println(p.toString()));
                } else {
                    articles2List.stream().sorted(Comparator.comparing(Articles2::getAuthor))
                            .forEach(p -> System.out.println(p.toString()));
                }
            }

        }



    }
}