Option Explicit On
Option Strict On
Option Infer Off
Public Class frmMain
Private Sub btnCalc_Click(sender As Object, e AsEventArgs) Handles btnCalc.Click
‘ Calculate accountbalances for each of five years
‘ using rates from 3% to7% in increments of 1%.
Dim dblDeposit AsDouble
Dim dblBalance As Double= 3
Dim dblInterest AsDouble
Dim dblRate AsDouble
Dim IntYears AsInteger
Double.TryParse(txtDeposit.Text, dblDeposit)
txtBalance.Text = “Year”& ControlChars.Tab & “Rate” &
ControlChars.Tab &”Balance” & ControlChars.NewLine
‘ Calculate anddisplay account balances.
For intYear As Integer =1 To 5
txtBalance.Text = txtBalance.Text & intYear.ToString&
ControlChars.NewLine
dblRate = 3
Do
dblInterest = dblBalance * dblRate / 100
dblBalance = dblBalance + dblInterest
dblBalance = Math.Round(dblBalance, 2)
txtBalance.Text = txtBalance.Text &
ControlChars.Tab &
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