1. Final Exam Review Part 4 - VBA
ChE 160 SI – Becca
Fall 2016

2. Introduction Define/explain the following terms: MsgBox() InputBox() ‘“
Option Explicit
Dim ___ As ___
& ampersand
.xlsm

3. Introduction- Answers
MsgBox() output/display from file
InputBox() input information into VBA
‘ single apostrophe comment
“ double apostrophe string
Option Explicit have to dimension/define all variables as their data types
Dim ___ As ___ how to dimension variables
& ampersand concatenate/piece together strings and variables
.xlsm how to save Macro files

4. &&& Ampersand Practice &&&

5. Common Errors Missing or misplaced “___”
Misspell MsgBox() or InputBox()
Forgot to Dim variable As datatype

6. Loops Write out the basic structure of these loops If loop For loop
Do loop

7. If Loop- Answers If <conditional statement> Then
(calculations/commands)
ElseIf <another conditional statement> Then
(Calculations/commands)
Else
End If

8. For Loop- Answers For <counter> = ___ To ___ Step ____
(calculations/commands)
Next <counter>

9. Do Loop- Answers Do (calculations/commands)
If <conditional statement> Then Exit Do
Loop

10. Operators Define the conditional operators = <> < > <=
>=

11. Operators- Answers Conditional Operators = equal to
<> not equal to
< less than
> greater than
<= less than or equal to
>= greater than or equal to

12. Subroutines and Functions
Difference between sub routine and function
Difference between ByRef and ByVal
Basic structure of a function
Basic structure of a subroutine

13. Subroutines- Answers Difference between sub routine and function
Sub does not return anything, function gives a final result. Also, subroutines are called
Difference between ByRef and ByVal
ByRef = By Reference, takes the reference variable and changes the value everywhere
ByVal = By Value, only uses the values locally

14. Subroutine and Function Structure- Answers
Basic structure of a function
Function <functionname> (<ByVal or ByRef> <variablename> As <data type>, …….) As <data type>
(statements and calculations)
<function name> = <expression>
NOTE: function has function name as final variable which will be the answer displayed when run.
Basic structure of a subroutine
Sub <subroutinename> (<ByVal or ByRef> <variablename> As <variabletype>, ….)
(statements with variables in argument list and declared in subprogram)
End sub

15. Inputs and Outputs
Output vs Append vs Input
Print vs Write vs Input

16. Inputs and Outputs- Answers
Append
Input
Open (pathname\filename) For Output As #filenumber
Open (pathname\filename) For Append As #filenumber
Open (pathanme\filename) For Input As #filenumber
VBA will create the file if one doesn't exist
Has to exist before opening
Write over everything in the file
Adds onto a file
Brings information into VBA
Ends with Close #filenumber

17. Inputs and Outputs- Answers
Print
Write
Input
Print #filenumber, [outputlist]
Write #filenumber, [outputlist, comma delimited]
Input #filenumber, variablelist
Variables can be separated using semicolons or commas
Values have to be separated by commas
Values have to be designated as correct data type to be inputted ( "" around strings, everything separated by commas)
Comma separates by tabs
Write file has commas still in between data types
Semicolon separates by spaces

18. Arrays
How do you create an array using VBA?

19. Arrays- Answers For Count = 1 To 11 Column(Count, 1) = 2 * Count - 1
Next Count

20. How did that go?