blindma1den level 0 - exercise 1
Create an online banking system with the following features:
- Users must be able to log in with a username and password.
- If the user enters the wrong credentials three times, the system must lock them out.
- The initial balance in the bank account is $2000.
- The system must allow users to deposit, withdraw, view, and transfer money.
- The system must display a menu for users to perform transactions.