Exercise 2 - Simulation 2

Background

This exercise is built on Exercise 1 - Simulation 1. And the following are the things you should do:

1. Add a queue field in the bank to store the bank queue.

2. Add a Task abstract class, with two concrete classes extending from Task to represent the DepositTask and Withdrawal Task respectively.

3. Change the operating logic and printing content of some Events

OOP Design

Class Relationship Diagram

UML Design

Basically, the UML is quite similar to the Ex1's. The "difficult" point lies in finding the correct logic to trigger each event.