Recitation  work: 9/23

1. Copy the programs from code/exceptionHandling/ into a new directory.

2. Compile and see the BanApplet in operation.

3. Move AccountInterface.java, Account.java, Bank.java , InsufficientFundsExceptions.java in a model directory. Move BankApplet.java and BankApplet.html into a directory viewController.
Make them into respective packages, compile and make sure they work.

4. Understand the "InsufficientFundsException" or the application-specific
exception and the general input format exception in "NumberFormatException".

5. NumberFormatException is available only for create account method. Extend it to other methods.
Compile and make sure your update works.

6. Add another application-specific exception: NonExistentAccountException and use it appropriately. Update code, compile and make sure it works. 

7. You may add an exit button to the bank interface.

8. Get more information on this from class lectures and recitation. 

Point to ponder: How can you save account information you created? 
Currently it is lost once you exit the program.