Exam coming up, I have questions I need help answering.

I have an upcoming exam and I don't have access to my professor and I have questions that the book is not clarifying for me.  The book that the class is using is Murach's Visual Basic 2008.

iI will list the questions will by numbers.  I understand that there are alot of questions here but I really need a good grade on this exam and these are the areas that I am still unsure of.  Some of the questions, I have tried to answer and I posted a comment in (), it my guess is correct could you annotate so.  If not could you help me get on base.

I am taking the exam tomorrow at 11.  I have been buried in this book for a couple of days now and I need help.  I am using this site as a last resort.  I figured individuals on here are much more proficient than myself so I mine as well ask the experts.  

I want to thank anyone in advance that is willing to answer any of these questions for me.  God Bless and Happy Veterans Day.  I myself am an "Iraq Veteran" in 2003.


1.  Here is the code, I understand what it does but I don't know how to apply it.  (example inputing in numbers).  I realize that default is 0.  But on the questions the professor will have this code and say input a number what would the answer be?  I don't know how to do that.

Input 3 as an example:

Dim sum As Integer
Dim i As Integer
For i = 0 to 4
      sum += i
Next

Answer?:

Same problem but different format.

Dim sum As Integer
Dim i As Integer = 2 to 12 Step 2
      sum += i
Next

Answer?:

Same problem but different format.

Dim sum As Integer
Dim i As Integer = 25 to -15 Step -10
    iSquared = i ^ 2      
    sum += iSquared
Next

Answer?:

For loop that calculates a future value
D
im monthlyInvestemnt As Decimal = 100
Dim monthlyInterestRate As Decimal = .01D
Dim months As Integer = 120
Dim futureValue As Decimal

For i As Integer = 1 To months
      futureValue = (futureValue + montlyInvestemnt) _
                      * (1 + monthlyInterestRate)
      Next i

Answer?:
nosurf2dayAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Dirk HaestProject managerCommented:
Dim sum As Integer
Dim i As Integer
For i = 0 to 4
      sum += i
Next

--> answer: sum = 10   (0+1+2+3+4 )
0
Dirk HaestProject managerCommented:
       For i As Integer = 2 To 12 Step 2
            sum += i
        Next

sum = 42 (2+4+6+8+10+12)
0
Dirk HaestProject managerCommented:
      Dim sum As Integer
        Dim iSquared As Integer
        For i As Integer = 25 To -15 Step -10
            iSquared = i ^ 2
            sum += iSquared
        Next

Answer: sum =  1125    (625 + 225 + 25 + 25 + 225)    ((25 * 25) + (15*15) + (5*5) + (-5*-5) + (-15*-15))
0
Build an E-Commerce Site with Angular 5

Learn how to build an E-Commerce site with Angular 5, a JavaScript framework used by developers to build web, desktop, and mobile applications.

Dirk HaestProject managerCommented:
       Dim monthlyInvestemnt As Decimal = 100
        Dim monthlyInterestRate As Decimal = 0.01D
        Dim months As Integer = 120
        Dim futureValue As Decimal

        For i As Integer = 1 To months
            futureValue = (futureValue + monthlyInvestemnt) _
                            * (1 + monthlyInterestRate)
        Next i

FutureValue = 23233.907635194016983557338611D
0
nosurf2dayAuthor Commented:
Thank you very much for the information, it is much easier than I though, I was looking at it the wrong way.  The last post though.

I am confused how you got this answer,  I am a business major, I understand the future value of money very well.  I understand what I am looking at for info.  But where did you come up with the amount?  The amount that I come up with on my financial calculator is this.

PPY:12
N:120
I: 10%
PMT: 100
FV: 20484.49

Regardless to the answer, am reading this right though?
0
Dirk HaestProject managerCommented:
When I break the values in the loop, I get the following values:
Dim monthlyInvestemnt As Decimal = 100
i = 1    futurvalue = 101D
i = 2    futurevalue = 203.01D
i = 3    futurevalue = 306.0401D
i = 4    futurevalue = 410.100501D
i = 5    futurevalue = 515.20150601D
i = 6    futurevalue = 621.3535210701D
i = 7    futurevalue = 728.567056280801D
i = 8    futurevalue = 836.85272684360901D
i = 9    futurevalue = 946.2212541120451001D
i = 10    futurevalue = 1056.683466653165551101D
i = 11   futurevalue = 1168.25030131969720661201D
i = 12    futurevalue = 1280.9328043328941786781301D
...
i = 120 futurevalue = 23233.907635194016983557338611D
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
nosurf2dayAuthor Commented:
You rock, thanks alot!
0
nosurf2dayAuthor Commented:
I get it now, thank you.  I was missing something.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
.NET Programming

From novice to tech pro — start learning today.