02. Articles

клас Article:
package articles;

public class Article {
    //характеристики -> полета
    private String title;
    private String content;
    private String author;

    //конструктор -> създаваме обекти
    public Article (String title, String content, String author) {
        //нов празен обект
        //title = null
        //content = null
        //author = null
        this.title = title;
        this.content = content;
        this.author = author;
    }

    //функционалности -> методи
    public void edit (String newContent) {
        this.content = newContent;
    }

    public void changeAuthor (String newAuthor) {
        this.author = newAuthor;
    }

    public void rename (String newTitle) {
        this.title = newTitle;
    }

    //default toString -> "{package}:{class}@{address}"
   @Override //пренаписвам -> работи по мой избор
    public String toString() {
        //"{title} - {content}:{author}"
       return this.title + " - " + this.content + ": " + this.author;
   }
}



Main метод:
package articles;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String articleData = scanner.nextLine();
        //"Holy Ghost, content, John Sandford".split(", ")
        //-> ["Holy Ghost", "content", "John Sandford"]
        String title = articleData.split(", ")[0];
        String content = articleData.split(", ")[1];
        String author = articleData.split(", ")[2];

         Article article = new Article(title, content, author);
         int n = Integer.parseInt(scanner.nextLine());
        for (int i = 1; i <= n; i++) {
            String command = scanner.nextLine();
            //"{име на команда}: {нова стойност}".split(": ") -> ["{име на команда}", "{нова стойност}"]
            //"Edit: {new content}"
            //"ChangeAuthor: {new author}"
            //"Rename: {new title}"
            String commandName = command.split("\\: ")[0]; //"Edit", "ChangeAuthor", "Rename"
            String newValue = command.split("\\: ")[1];

            switch (commandName) {
                case "Edit":
                    article.edit(newValue);
                    break;
                case "ChangeAuthor":
                    article.changeAuthor(newValue);
                    break;
                case "Rename":
                    article.rename(newValue);
                    break;
            }
        }

        System.out.println(article.toString());
    }
}