Variable

Variables are like little boxes to store data in and read data from, typically numbers. What's in the box?!

How to Declare a Variable

You declare/create a variable by stating its type and then stating its name: int myVar;. You can also give an initial value for the variable during creation using the assignment operator: int myVar = 69;.

Variable Names

Variables names (the same as any other type of user-defined symbol) can contain any number, letter, and the underscore character. They cannot start with a number. Case matters (_DirtayBoi69 is not the same symbol as _dirtayboi69).

Variable Types

int

int variables store an integer (non-fractional number) ranging from -2147483648 to 2147483647. They occupy 4 bytes of memory.

bool

bool variables store a Boolean logic value (true or false). They occupy 4 bytes of memory. The bool type is used to control the operation of flow control statements, such as the if statement.

The const Specifier

You can specify that a variable's value cannot be changed by declaring it like this: const int blazeItFgt = 420;. Doing so can protect your code from unintentional bugs and is generally considered a fucking good practice called 'const correctness'. Note that when you declare a variable as const, you need to initialize it during creation because you cannot assign to it afterwards.