Visual Basic

Create a new project Account Class

Table I: Properties of class to be used in this application.

Serial # Class Name Purpose

$1$ Balance Holds the current account balance

$2$ IntRate Holds the interest rate for the period

$3$ Interest Holds the interest earned for the current period

$4$ Transactions Holds the number of transactions for the current period

Table II: Methods to be used in the current application.

Serial # Method Name Purpose

$1$ MakeDeposit This method takes an argument, which is the amount of This argument is added to the Balance property deposit.

$2$ Withdraw This method takes an argument, which is the amount of

withdrawal. This value is subtracted from the Balance property, unless the withdrawal amount is greater

than the balance. If this happens, an error message is displayed through a message box.

$3$ CalcInterest This method computes the amount of interest for the current period and stores this value in the Interest property and adds to it to the Balance property.

You are supposed to demonstrate the class in an application that could perform the following tasks:

$$ Allows the deposit to be made to the account.

$$ Allows the withdrawals to be taken $($subtracted$)$ from the account.

$$ Calculates the interest for the period.

$$ Report the current account balance at any time.

$$ Reports the current number of transactions at any time.

The GUI for the main form control is shown in Fig. $1,$ which contains eight label controls in a GroupBox

and four button controls outside the group box. Among these eight label controls, $($i$)$ four are default

label controls whose text properties are shown in GUI of Fig. $1,$ and $($ii$)$ the rest four label controls are

used to display the output data of each transaction and should have the name property; lblBalance,

lblIntRate, lblInterest and lblTransactions. The purpose of four button controls is listed as follows: $($i$)$

the first one is to Deposit money, $($ii$)$ the second one is to Withdraw money, $($iii$)$ the third one is to

Calculate Interest on current balance and $($iv$)$ the fourth one is to Exit the application. The name

property of respective button control should be btnDeposit, btnWithraw, btnCalc and btnExit. Each

transaction is to be done with the help of an Input Message Box.

Account Data

Calculate Interest