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Better, but it still needs a lot of work. Your check account.contains(name) won't work as name is a String, but the ArrayList contains Accounts. Bank class doesn't need an atrribute balance, Account...

You've still got it wrong. The bank(class) is your room, in your room there is a folder(Arraylist) and with every 'enroll' call you put a new sheet with a name and balance(Account) into the folder....

Ok. You're confused. Your ArrayList will contain Accounts not Strings. The ArrayList will be created once. In enroll you create a new Account and add it to the ArrayList.

You didn't read the assignment properly! It says: The central class is "Bank" that contains the accounts (an ArrayList).

creating an instance means:

Bank b = new Bank();
CommandReader reader = new CommandReader(b);

Put the main method into Bank, create an instance of Bank. Create an instance of CommandReader using the constructor, that you've commented. Call Command reader's run() method.

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