Lenny is a simple, text-based task management assistant.
It helps you add, list, search, and update tasks from the command line with an intuitive set of commands.
Add new tasks to your list. Tasks can be of three types: todo, deadline, and event.
Each command creates a task and confirms it has been added successfully.
Example: todo <description>
Example: deadline <description> /by <date>
Example: event <description> /from <start> /to <end>
Expected outcome: A new task is added to your task list and displayed back to you.
Input:
todo read book
Expected output:
Got it. I've added this task:
[T][ ] read book
Now you have 1 task in the list.
Input:
deadline submit report /by 2025-09-30
Output:
Got it. I've added this task:
[D][ ] submit report (by: 2025-09-30)
Input:
event team meeting /from 2025-09-21 14:00 /to 2025-09-21 16:00
Output:
Got it. I've added this task:
[E][ ] team meeting (from: 2025-09-21 14:00 to: 2025-09-21 16:00)
Assign a priority level (e.g., 1–5) to a task. In GUI, this is a window that pops after adding a task. In the CLI, you’ll be prompted to assign a priority once the task description has been accepted.
Example: priority <task number> <level>
Expected outcome: The task is updated with a priority indicator.
Input:
deadline project tasks /by Sunday 3pm
Output:
Enter task priority (1–5):
Input:
3
Output:
Boom! Just added to your list:
[T][ ] go home
This task has priority level: 3
Now you have 3 tasks in the list.
Show all tasks currently in your list.
Example: list
Expected outcome: Lenny displays all tasks with their type, completion status, and details.
Input:
list
Output:
Here are the tasks in your list:
1.[T][ ] read book
This task has priority level:3
2.[D][ ] submit report (by: 2025-09-30)
This task has priority level:5
3.[E][ ] team meeting (from: 2025-09-21 14:00 to: 2025-09-21 16:00)
This task has priority level:2
Mark a task as completed.
Example: mark <task number>
Expected outcome: The chosen task is updated with [X] to indicate completion.
Input:
mark 1
Output:
Nice! I've marked this task as done:
[T][X] read book
Unmark a completed task (set it back to incomplete).
Example: unmark <task number>
Expected outcome: The chosen task is updated with [ ] to indicate it is incomplete.
Input:
unmark 1
Output:
OK, I've marked this task as not done yet:
[T][ ] read book
Remove a task from the list.
Example: delete <task number>
Expected outcome: The selected task is removed from the list.
Input:
delete 2
Output:
Noted. I've removed this task:
[D][ ] submit report (by: 2025-09-30)
Now you have 2 tasks in the list.
Search for tasks containing a keyword in their description.
Example: find <keyword>
Expected outcome: Lenny shows only tasks that match the keyword.
Input:
find book
Output:
🔍 Detective mode activated... here’s what I dug up:
1.[T][ ] read book
This task has priority level: 2
Exit the program.
Example: bye
Expected outcome: Program ends with a farewell message.
Input:
bye
Output:
Bye. Hope to see you again soon!