What is Constants ?

• C Constants are also like normal variables. But, only difference is, their values can not be modified by the program once they are defined.
• Constants refer to fixed values. They are also called as literals
• Constants may be belonging to any of the data type.

Types of C constant:

1.     Integer constants
2.     Real or Floating point constants
3.     Octal & Hexadecimal constants
4.     Character constants
5.     String constants
6.     Backslash character constants