Program should be in Java oop

Requirements:

Your task is to build an application which allows the user to input their things to do and set up reminders.

Program features:

1. Support for events (i.e. has a start time and end time), tasks with deadlines (tasks that have to be done before a specific deadline), and floating tasks (tasks without deadlines)
2. User must be able to create event, task with deadlines and floating task through a command-line interface
3. User is allowed to delete or update event, task with deadlines and floating task after it is being created
4. User must be able to keep track of which event, task with deadlines or floating task are done complete and which are yet to complete
5. User should be able to view a summary view of all the events, tasks with deadlines and floating tasks

Program should be in Java oop