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Lesson 2 Variables and Scope p. 34 - 40

1. Declaring a variable causes VB to _________________ a spot in memory for the value of the variable.
2. Use the _________________ statement to declare variables.
3. Always choose the best ___________ ____________ to contain the type of data you need to use in your program.
4. Data stored as a variable can be processed much faster than data stored in _______ ____________ ________________ ________________ _______________.

Data Type	Stores…	Prefix	Example
Byte		byt	BytAge byt
	Logical values: True or False	bln	blnCancel blnOpen
Currency	15 digits left of decimal, 4 digits to the right
Integer		int	intCount intNumber
Long	Large integer, whole numbers, no decimals or fraction Negative 2 billion to pos 2 billion
	Floating point decimal numbers up to six decimal places	sng	sngRate sngDecimal
Double	Larger numbers, up to 15 decimal places
Date		Dte	dteBirth dteFile
	Text up to 65k alphanumeric characters, must be in ___________	str	strName strAddress strCity
	Stores different data types	vnt	vntUnknown vntGeneric

5. ______________________ are useful data in your program with a value that does not change.

Scope

1. The _________________ of a variable is its reach. This describes the lifetime of a variable and what parts of the program are ______________ of it.
2. Variables declared at the procedure level are called __________________ variables. They are only seen and recognized by the ___________________ or _________________ in which they are declared.
3. Variables declared at the ____________________ ________________ level are called form level variables. These variables need to be seen by various ________________ or __________________. Form level variables stay in memory until the _____________________ ends.
4. Variables declared at _________________ level are called global variables. These are seen by more than just one _______________.
5. At the module level there is no difference between _______________ and ______________.
6. Variables declared in a module can be Private, they are seen by the whole ______________.
1. Private strMyPrivateVariable as _______________
7. ________________ variables are available to all _______________.
1. Public strMyPublicVariable as _________________ .