Primary constants include integers, floats, and characters. Secondary constants include arrays, structures, pointers, Enum, and other types of data.
A constant in mathematics is a distinct integer or symbol that has a stable value. A constant, in other words, is a value or number that does not change in expression. It has the same value all the time. 2, 5, 0, -3, -7, 2/7, 7/9, and so on are examples of constants.
Constants are data values that remain the same each time a programme is run. It is unlikely that constants will change. Actual values are fixed into the source code as literal constants. The character string "hello world" is an example of this.
Constants, often known as literals, are fixed values that the programme cannot change. Constants are separated into Integer Numerals, Floating-Point Numerals, Characters, Strings, and Boolean Values and can be of any of the basic data kinds.