A13: Keywords:
Keywords are the
predefine and preserved words in C and each of which is associated with
specific feature and meaning to the compiler. There are 32 keywords in C
language.
e.g. int, if, main,
etc.
Identifiers:
Each program element
in c programming is known as an identifier. These are used for naming of
variables, functions, arrays, etc.
e.g. (int
primeNumber, float _avg).
Constants:
Constants means fixed
value, the value of the constant cannot change during the execution of the
program. There are mainly two types of constant numeric constant, character constant.
e.g. const float PI =
3.14, #define GST 12.
