I am working on an CS 300 assignment. This java program needs to withdraw money, deposit money, query amount balance and see recent 5 transaction. I have to create 4 classes namely BankAccount, BankAccountTester, BankTeller and BankTellerTester. I know the use transactionCode which is 0 for deposit and 1 for withdrawal. transacationAmount represents the withdrawal or deposit amount. The issue is I need to use the @throws annotation and an array list. I am not sure what each class holds