Question

Numeric constant vs alphanumeric constant

Answer 1

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Constants
Numeric Constant
May have sign in front of number
May have decimal point
No commas, dollar signs, percent signs
May be used in calculations
Examples of numeric constants
5 4.5 -7
Nonnumeric Constant
Anything enclosed in quotation marks is considered a Nonnumeric constant, also called string constants or alphanumeric constants or literals
Nonnumeric constants SHOULD NOT be used in calculations
Examples of nonnumeric constants
“Hello World” “5” “Five” “”
Note: Quotes with nothing, not even a space between them are called a zero-length string or empty string