Constants

Constants in C++ refer to fixed values which do not modify during the execution of a program. C++ supports various types of constants as displays below: -

Numeric Constants

1.   Integer Constants

2.   Floating point (real) Constants

Character Constants

1.   Single Character Constants

2.   String Constants

The given rules apply to all numeric constants: -, non-digit characters and blanks cannot be involved inside a constant. A constant can be preceded through a minus sign.