Variables
Variables are where you can store information and you can use reuse them easily in code.
Datatypes
int myNum = 5; // Integer (whole number)
double myDecimal = 5.99; // Decimal Numbers
char alLetter = 'D'; // Character
bool myBool = true; // Boolean
string myText = "Hello World"; // String
To create a Variables a number of ways
string name = "John";
Console.WriteLine(name);
or
var name = "John";
Console.WriteLine(name);