Constant In C++. C++ constants is a quantity that cannot be changed during program execution. Following are two types of constants in C++: 1) Literal-constant 2) Symbolic constant.

A literal-constant is a value that is typed directly in a program. It appears in the program wherever it is needed.

Different types of literal-constants are as follows. An integer constant, Floating point constant, Character constant, and String constant.

 A symbol is a name given to values that cannot be changed. A constant must be initialized. After a constant is initialized, its value cannot be changed. Symbolic constants are used to represent a value that is frequently used in the program.

A symbolic-constant PI can be used to indicate that value of Pi which is 3.141593. I can be written in the program wherever its value is required.

Symbolic-constants can be used declared in two ways: 1) const-Qualifier 2) define-directive 3) const-Qualifier.

C++ Constants

C++ Constants C++ constants is a quantity that cannot be changed during program execution. Following are two types of constants in C++: Literal constant Symbolic constant 1) Literal constant A…

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