The nonnumeric literal is used in normal to output messages or headings. The Characters which are enclosed between " " constitute nonnumeric literal. The maximum number of characters which are allowed within the two quotation marks is compiler dependent.
Valid Nonnumeric Literal
Invalid Nonnumeric Literal
7 (valid as numeric literal but invalid as Nonnumeric literal)
"nine (Invalid as there is no quotation mark on the right)
12.5" (Invalid as there is no quotation mark on the left)