Question

Difference between numeric and alphanumeric constant.

Answer 1

As adjectives the difference between alphanumeric and numeric. is that alphanumeric is consisting of, or limited to, letters and/or numbers, especially the characters a to z (lowercase and uppercase) and while numeric is of, or relating to numbers, especially the characters.

Answer 2

The string constants are always enclosed in double quotes, while character constants are enclosed in apostrophes (single quotation marks). A character constant has an equivalent integer value, whereas a single-character string constant does not have an equivalent integer value.