How many data types in C++ Language

Answer 1

Mainly bool, char, strings, int, float, double, decimal, long, void(pointers), short, long doubles, long long, int long.
In the future where you need to import more libraries, you will encounter more datatypes

Answer 2

Built-in types: bool, char(with signed, unsigned versions), wchar_t, short, int, long, long long, float, double, long double, pointers
All integer types are signed or unsigned.
signed short a;
unsigned short b;

Standart library of C++ and C has a lot if structures and classes. It's hard to count them all.