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# Using Variables - PowerPoint PPT Presentation

Using Variables . Declaring Variables . Dim <variable name> As <data type> Variable Name (identifier) Begin with a letter Only letters, digits, and the underscore _ Fewer than 255 characters. Data Types. Examples. Dim intA As Integer Dim dblTaxRate As Double Dim TaxAmount As Currency

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## PowerPoint Slideshow about 'Using Variables' - bian

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Presentation Transcript

### Using Variables

Dim <variable name> As <data type>

Variable Name (identifier)

• Begin with a letter

• Only letters, digits, and the underscore _

• Fewer than 255 characters

• Dim intA As Integer

• Dim dblTaxRate As Double

• Dim TaxAmount As Currency

• Dim MyName As String

• Make program easier to read

• Make program easier to modify

dblTotal = dblPurchase * .06

dblTotal = dblPurchase * dblTaxrage

• Text box

• Check Boxes

Example:

• the “\” returns the integer part of division

• 7 \ 2 return 3

• 12 \ 5 returns 2

• 35 \ 7 returns 5

• 35 \ 6 returns 5

• The Mod operator returns the remainder of division.

• 7 Mod 2 returns 1

• 12 Mod 5 returns 2

• 35 Mod 7 returns 0

• 35 Mod 6 returns 5

• Use when you want to force the user to make EXACTLY one choice

Example