Excel VBA Programming The Complete Guide - Constants

The video tutorial explains the concept of constants in programming, particularly in VBA. It contrasts constants with variables, highlighting that constants are values that do not change during the execution of a macro. The tutorial covers how to declare constants using the CONST keyword, naming conventions, and the scope of constants within modules and procedures. It also explains how to make constants globally available across all modules using the public keyword.

What is the primary difference between a variable and a constant in programming?

• Variables can change their values, while constants cannot.

• Constants can change their values, while variables cannot.

• Both variables and constants can change their values.

• Neither variables nor constants can change their values.

Which keyword is used to declare a constant in VBA?

• Static

• Const

• Var

• Dim

What is a common naming convention for constants?

• Using numbers only

• Using all lowercase letters

• Using all uppercase letters

• Using camelCase

What happens if you try to change the value of a constant in VBA?

• The program ignores the change.

• An error is thrown.

• The program crashes.

• The value changes successfully.

What is the benefit of using a constant for a tax rate in a program?

• It allows the tax rate to change frequently.

• It ensures the tax rate remains consistent throughout the program.

• It allows the tax rate to be used only once.

• It makes the program run faster.

How can you make a constant available across all modules in a workbook?

• By declaring it with the 'Dim' keyword

• By declaring it with the 'Static' keyword

• By prefixing it with the 'Public' keyword

• By declaring it inside a procedure

Which keyword would you use to declare a constant that should be accessible by all procedures within a single module?

• Const

• Public

• Global

• Private