public static void main(String[] args) {

ArrayList<Task> tasks = new ArrayList<>();

Scanner scanner = new Scanner(System.in);

while (true) {

System.out.println("* -- Todo List Application -- *");

System.out.println("1. Add Task");

System.out.println("2. List Tasks");

System.out.println("3. Mark Task as Done");

System.out.println("4. Exit");

System.out.print("Enter your choice: ");

int choice = scanner.nextInt();

scanner.nextLine(); // Consume the newline character

switch (choice) {

case 1:

System.out.print("Enter task description: ");

String description = scanner.nextLine();

Task task = new Task(description);

tasks.add(task);

System.out.println("Task added.");

break;

case 2:

System.out.println("Tasks:");

for (int i = 0; i < tasks.size(); i++) {

Task t = tasks.get(i);

System.out.println((i + 1) + ". " + t.getDescription() + " - " + (t.isDone() ? "Done" : "Not Done"));

}

break;

case 3:

System.out.print("Enter the task number to mark as done: ");

int taskNumber = scanner.nextInt();

if (taskNumber >= 1 && taskNumber <= tasks.size()) {

Task selectedTask = tasks.get(taskNumber - 1);

selectedTask.setDone(true);

System.out.println("Task marked as done.");

} else {

System.out.println("Invalid task number.");

}

break;

case 4:

System.out.println("Goodbye!");

scanner.close();

System.exit(0);

default:

System.out.println("Invalid choice. Please enter a valid option.");

}

}

}