ATM Simulator
2021A desktop ATM simulator modelling customers, accounts and transactions as separate classes behind a Swing interface.
- Java
- Swing
An introductory coursework project. Included for the modelling, not the scope.
The account, running
Ported from JavaSign in with 1234, then try withdrawing exactly your balance.
Opening the account…
An early coursework project, included because it is where domain modelling stopped being an abstract idea. Customer, BankAccount and Transactions each own their own state and rules, with the Swing GUI kept as a layer on top rather than the place the logic lives.
That separation is the same instinct behind the Sudoku solver on this site — keep the rules independent of whatever is drawing them — arrived at years earlier and much less deliberately.