Basic Java Command Line User Interface (CUI)

cui.java

package userinterface;

import java.util.Scanner;

public class Userinterface{

        Scanner scanner = new Scanner(System.in);
        boolean done;

        public void dialog(){
            System.out.println("[1]  1 option");
            System.out.println("[2]  2 option");
            System.out.println("[3]  3 option");
            System.out.println("[4]  4 option");
            System.out.println("[5]  5 option");
            System.out.println("[6]  6 option");
            System.out.println("[7]  7 option");
            System.out.println("[8]  8 option");
            System.out.println("[9]  9 option");
            System.out.println("[10] 10 option");
            System.out.println("[11] 11 option");
            System.out.println("[12] 12 option");

        }
        public void run(){
            while(!done){
            dialog();
            System.out.print("Enter (): ");
            int choice = scanner.nextInt();
            switch(choice) {
                case 1:
                    break;
                case 2:
                    break;
                case 3:
                    break;
                case 4:
                    break;
                case 5:
                    break;
                case 6:
                    break;
                case 7:
                    break;
                case 8:
                    break;
                case 9:
                    break;
                case 10:
                    break;
                case 11:
                    break;
                case 12:
                    break;
                default:
                System.out.println("Incorrect Input.");
                    break;
            }
        }
    }
}

Main.java

import userinterface.Userinterface;

public class Main {

    public static void main(String[] args) {
        Userinterface userinterface = new Userinterface();
        userinterface.run();
    }
}