Data Types in C++

In any programming language, data types hold a very important place. Data types are used to determine what kind of data will be stored in a variable. In simple words, data types define the nature of a variable.

Data types can be mainly divided into three categories:

These are the most common types and include `int` (integers), `float` (decimal numbers), `double` (double-precision floating-point), `char` (single characters), `bool` (true or false), and `void` (empty).

These are created from fundamental data types. Examples include Array, Pointer, Reference, and Function.

When primary and derived data types do not meet our needs, we can use user-defined data types. These include Structure, Union, Enum, and Class.