Simple-Bank-Application

A simple application that handles new customer bank account requests.

Introduction

The application does the following:

• Reads a .csv file with data in the following order:
  • Name
  • National insurance number
  • Account type
  • Initial deposit
• The savings and current account share the following properties:
  • Deposit
  • Withdraw
  • Transfer
  • ShowInfo
• Creates an 11-digit account number that is created by the process of appending:
  • Prefix of 1 or 2 depending on whether it is a savings or current account
  • The third-last and second-last digits of the NI number
  • A unique 5-digit number
  • Random 3-digit number

BankAccountApp.java

This is the main class for this application and reads the .csv file to create new accounts based on the data.

Account.java

This is the parent class for Savings.java and Current.java. The account number that comes after the prefix of 1 or 2 is set in this class. The accrued interest is calculated here and the account balance is updated here.

Savings.java

This is a child class of Account.java. Savings account holders are given a Safety Deposit Box which:

• Are identified by a 3-digit number
• Can be accessed with a 4-digit code

Current.java

This is also a child class of Account.java. Current accounts holders are assigned a debit card with:

• A 12-digit card number
• A 4-digit PIN

IBaseRate.java

Both the savings and current accounts use an interface that determines the base interest rate:

• Savings accounts will use 0.25 less than the base rate
• Checking accounts will use 15% of the base rate