java program for banking management system

Because our withdrawal method throws an exception if the given amount is greater than the available balance, we have to handle that exception in one of two ways. So call the withdraw method in the BankAccount class with the this.fastCashAmount, withdraw the given fast cash amount. All this method is going to do is call our other withdraw method that we've already written with the fast cash amount, this.withdraw. This is going to allow me to make a fast or a quick withdrawal in the amount of the fast cash amount, so public void fastWithdraw. Next, I'm going to add an additional method, it's going to be called fast withdraw. Set initial default value for fast cash amount. Next, I'm going to update the constructor for the BankAccount class to set an initial default value for the fast cash amount, this.fastCashAmount equals 60. It's going to represent a fixed amount for quick withdrawals. I'm going to add an additional instance variable here, it's going to be called fastCashAmount, and it's a double. I'm going to open up the BankAccount class, Banking project, source folder, banking package, BankAccount class.

Before we add unit testing files, let's go ahead and make some updates to the BankAccount class. We had a Bank class which represented a bank, a Customer class which represented a customer, and a BankAccount class which represented a bank account for customer. If you recall, our Banking project had three classes. Let's unit test our previous Banking project.

Java program for banking management system