ProjectManagerUI.java

import java.util.ArrayList;
import java.util.Scanner;
public class ProjectManagerUI {
    
    public static void main(String[] args) {

        ArrayList<User> users = DataLoader.GetUsers();
        ArrayList<Project> project= DataLoader.GetProjects();
		ArrayList<Task> task =  DataLoader.GetTask();
		ProjectManagerUI ui = new ProjectManagerUI();
	
		ui.run();
    }

    public void run(){
        Scanner input = new Scanner(System.in);
        boolean running = true;
        ProjectApplication projectApp = new ProjectApplication();
        UserList user = new UserList();
        TaskList task = new TaskList();
        ProjectList project = new ProjectList();

        while(running){
            System.out.println("Welcome to Project Manager!");
            System.out.println("1. Login");
            System.out.println("2. Create Account");
            System.out.println("3. Exit");
            System.out.print("Enter your choice: ");
            int choice = input.nextInt();
            input.nextLine();
            switch(choice){
                case 1:
                    projectApp.logIn();
                    break;
                case 2:
                    projectApp.signUp();
                    break;
                case 3:
                    running = false;
                    user.logout();
                    break;
                default:
                    System.out.println("Invalid choice. Please try again.");
            }

            boolean isLoggedIn = true;

            while(isLoggedIn){
                System.out.println("---------\nMain Menu\n---------\nWould you like to:\n 1. View Projects\n 2. Create Project\n 3. Open Project\n 4. Create a Task\n 5. Exit");
                int choice2 = input.nextInt();
                input.nextLine();
                switch(choice2){
                    case 1:
                        projectApp.getAllProjects();
                        break;
                    case 2:
                        projectApp.createProject();
                        break;
                    case 3:
                        projectApp.openProject();
                        break;
                    case 4:
                        projectApp.createTask();
                        break;
                    case 5:
                        isLoggedIn = false;
                        user.logout();
                        DataWriter.saveProjects();
                        DataWriter.saveTasks();
                        break;
                    default:
                        System.out.println("Invalid choice. Please try again.");
                        break;
                }
            }
        }
    } 
}