When a customer of the Java International Bank opens a new savings account, the bank’s software creates an instance of class named BankAccount. The initial balance for each new savings account must be...

When a customer of the Java International Bank opens a new savings account, the bank’s software creates an instance of class named BankAccount. The initial balance for each new savings account must be greater than zero. When the customer makes deposits to or withdrawals from an account, appropriate methods of BankAccount are called.

a. Write a CRC card for the class BankAccount.

b. Write headers for each constructor and method in BankAccount. Include comments in javadoc format.

c. What are the preconditions and postconditions for each constructor and method in BankAccount?