The first thing that we learn in any language is the set of characters used in that language. For example- when we start learning English, firstly we require to learn English alphabets.

Similarly, there are many characters that can be used to write a C program. Collection of those characters is referred as "C Character Set".

C Character Set

Following characters can be used to write a C program-

1. Alphabets - A,B,C ....Z, and a, b, c, ....z
2. Digits - 0,1, ...9
3. Blank Space -
4. Special Symbols -  #, (, ), {, }, [, ], +, -, *, / etc.