Answered: Define a BankAccount class that has •…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Define a BankAccount class
that has
• accNum (int)
• Balance (double)
• A constructor
• Four methods
o deposit
o withdraw
o getAccNum
o getBalance

2. Implement a test class
TestBankAccount that
• Initialize an BankAccount
instance with initial values:
• deposit: 500.0
• accNum: 1001
• Deposit 30.50
• Withdraw 50.0
• Print out the remaining
balance

Expert Solution

Step 1: Introduction

In this programming exercise, we'll create a BankAccount class and a TestBankAccount class to simulate basic banking operations. The BankAccount class will have attributes for the account number (accNum) and account balance (balance). It will also provide methods for depositing, withdrawing, retrieving the account number, and checking the balance. The TestBankAccount class will demonstrate the usage of the BankAccount class by initializing an account, making deposits and withdrawals, and printing the remaining balance.

As the programming language is not mentioned here we are using JAVA

Algorithm

Create a BankAccount class with the following attributes:
accNum (integer): Represents the account number.
balance (double): Represents the account balance.
Define a constructor for the BankAccount class that takes the account number and an initial balance as parameters and initializes the attributes.
Implement the deposit method in the BankAccount class. This method should accept an amount to deposit and update the account balance if the amount is greater than zero.
Implement the withdraw method in the BankAccount class. This method should accept an amount to withdraw and update the account balance if the amount is greater than zero and does not exceed the current balance.
Implement the getAccNum method in the BankAccount class to retrieve the account number.
Implement the getBalance method in the BankAccount class to retrieve the current account balance.
Create a TestBankAccount class with a main method to test the BankAccount class.
Inside the main method of the TestBankAccount class:
- Create an instance of the BankAccount class with an initial account number and balance.
- Deposit a specified amount into the account.
- Withdraw a specified amount from the account.
- Print the remaining account balance.

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