Variables and Data Types
Variables are used to store data in a program. C# supports various data types, including integers, floating-point numbers, strings, and booleans.
Declaring Variables
int age = 25;
double price = 19.99;
string name = "Alice";
bool isActive = true;
Common Data Types
int: Integer (e.g., 10, -5)double: Floating-point number (e.g., 3.14, -0.001)string: Text (e.g., "Hello, World!")bool: Boolean (e.g., true, false)
Type Inference with var
C# supports type inference using the var keyword.
var age = 25; // int
var price = 19.99; // double
var name = "Alice"; // string