ASSIGNMENT

ASSIGMENT    DATE TO BE SUBMITTED ON OR BEFORE   27/6/2013

1.       Write a VB program to calculate the simple interest of a deposit. If the deposit amount is below 10000, the rate 5%. If the amount is 10000 to 25000, the rate is 8% and 10% for other amounts.The details to be accepted are amount deposited and number of years of deposit. Input and outputmust be accepted/displayed in TextBoxes. The calculation is done when a command button isclicked.

Hint: Simple Interest = P*N*R/100. P-Principal Amount. N-No.of Years R-Rate of Interest

2.    Predict the output of the following VB code (2)

For a=1 to 10

Print a * a

If a=b Then

Exit for

EndIf                                                   

Next a

3.    Write a VB program to accept the marks of 4 subjects of a student and find the total, percentage and grade.Display the results in separate text boxes. The grade is to be calculated as follows; above 80% ‘A’, from 50% to80% ‘B’ and below 50% ‘C’.(maximum mark for a subject is 60).

4.    Write mathematical expressions equivalent to the following VB expressions,

a. ( a + b ) * ( a – b )

b.10 * x ^ 2 + 5 * y ^ 2 + 3

c. (x ^ 2 –b ^ 2)/3 * x ^ 2

5.    Differentiate Do While loop and Do until loop with syntax and example.

6.    Develop a VB program to find the sum of the First N natural numbers

(Design the form, set the properties of the control and write the code)

7.    Suppose in a VB project there are four command buttons in a form and each button is

Associated with event. When we run the program which button’s event will

          Executed first? Explain the corresponding feature of VB

8.    What is output of the following code? Rewrite it using all other loop formats.

Dim I as integer

I = 10

Do while ( I > 1)

Print i

I= I – 2

            Loop

9.    Explain Operators in VB?

10. Explain any 4 common events of VB objects

11.  Consider the VB code segment to find the sum of odd numbers upto N.

Private Sub Command1_Click()

Sum=1

N=val(text1.text)

I=0

Do while I>N

Sum=Sum+I

Loop

Msgbox Sum

a) Predict the output of the code?

b) Correct the errors?

          c) Rewrite the code using for loop?

12.Which property of form object can be used to set the title bar of a form to “My VBProject”?

13. Consider the following variable definition. Calculate total memory usage.

Dim A As Integer, B As Long, C As Currency

14. Rewrite the following Do While Loop using Do Until structure.

A=1

Do While A<=100

Print A

A = A + 1

             Loop

     15.Explain the syntax and use of SELECT statement in VB.

     16. Explain the different components of Visual Basic IDE. (5 scores)

          17. Compare Decision Statements in Visual Basic (5 scores)

18. You want to change the background color of a command button in Visual      Basic. Name the properties that are to be set for this. (2 scores)

19. Find the output. X=7, y=3 (2)

x/y, x\y, xmody, x^y

20. describe any 3 looping statements with syntax.

21. Re-write the following VB code segment using some other statement without affecting     the output.

If n=1 Then

MsgBox “Apple”

ElseIf n=2 Or n=3

MsgBox “Orange”

Else

MsgBox “Grapes”

End If

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