ToDoList.java

import java.util.ArrayList;
import java.util.Scanner;

public class ToDoList {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        ArrayList<String> tasks = new ArrayList<>();
        String command;
        
        while (true) {
            System.out.println("Enter command (add, view, remove, quit):");
            command = scanner.nextLine();
            
            if (command.equals("add")) {
                System.out.println("Enter task to add:");
                String task = scanner.nextLine();
                tasks.add(task);
            } else if (command.equals("view")) {
                System.out.println("Your tasks:");
                for (int i = 0; i < tasks.size(); i++) {
                    System.out.println((i + 1) + ". " + tasks.get(i));
                }
            } else if (command.equals("remove")) {
                System.out.println("Enter task number to remove:");
                int taskNum = scanner.nextInt();
                scanner.nextLine();  // Consume newline
                if (taskNum > 0 && taskNum <= tasks.size()) {
                    tasks.remove(taskNum - 1);
                    System.out.println("Task removed.");
                } else {
                    System.out.println("Invalid task number.");
                }
            } else if (command.equals("quit")) {
                break;
            } else {
                System.out.println("Unknown command.");
            }
        }
        scanner.close();
    }
}