What are the main types of primitive data types you know?

The main primitive data types in C# include:

• int — integer (e.g., 32-bit)
• double — double-precision floating-point number
• float — single-precision floating-point number
• bool — boolean type (true or false)
• char — Unicode character
• string — sequence of characters (although technically a reference type, often used as a primitive)
• byte — unsigned integer from 0 to 255
• decimal — high-precision number, often used for financial calculations

Example usage:

int age = 30;
bool isActive = true;
char grade = 'A';
double price = 19.99;
string name = "Ivan";