Variables and Types

int xp = 100;
string name = "Ada";
bool isInstructor = true;
double score = 92.5;

Console.WriteLine($"{name} has {xp} XP");

Common types

String interpolation

A $"..." string lets you embed expressions directly with { }, this is called string interpolation.

Type inference with var

var count = 10; // the compiler infers count is an int

var doesn't make C# dynamically typed, the compiler still figures out and locks in a concrete type at compile time, it just saves you from writing it out.