The str method of the Bank class returns a string containing the accounts in random order. Design and implement a change that causes the accounts to be placed in the string by order of name. (Hint:...

The str method of the Bank class returns a string containing the accounts in random order. Design and implement a change that causes the accounts to be placed in the string by order of name. (Hint: You will also have to define a new method in the SavingsAccount class.)