package com.twu.biblioteca;

public class BibliotecaApp {

    public static void main(String[] args) {
        System.out.println("Hello, world!");
    }
}

@@ -55,96 +55,421 @@
 p %7B%0A
-%0A    public static void main(String%5B%5D args) %7B%0A        System.out.println(%22Hello, world!%22
+    private UI ui;%0A    private Message message = new Message();%0A    private IO io = new IO();%0A    private Librarian librarian = new Librarian(%22./data.json%22);%0A%0A    public BibliotecaApp() %7B%0A        this.ui = new UI(librarian,message,io);%0A    %7D%0A%0A%0A    public static void main(String%5B%5D args) %7B%0A        BibliotecaApp app = new BibliotecaApp();%0A        app.message.printMessasge(%22Welcome%22);%0A        app.ui.printMainMenu(
 );%0A 
@@ -473,10 +473,12 @@
 ;%0A    %7D%0A
+%0A%0A
 %7D%0A

put all classes together to run the game.