Description: Suppose you are a bank s staff. Account object type definition. These accounts are the current account (CheckingAccount) and savings accounts (the SavingsAccount). The current account has the following characteristics: the name of the account holder can only be specified when creating an account initial amount must be specified when the account was created account creation must be assigned an account number. Current Account Account number range from 1000 to 4999, each account must have a unique account number. (Do not have to check the correctness of the account number). The current account holders can: add money to the account sufficient funds in the account, you can withdraw money.
The savings account has the following characteristics: the name of the account holder can only be specified when creating an account initial amount must be specified when the account was created account creation must be assigned an account number. Savings account account number range from 5000 to
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c#chuxuchengxu.txt