Primitive data types works
- int, double, float, String (Capitalized only), char, ...
- To print them is way simpler than C: System.out.print(variable)
Also, there are boolean variables in this language by default (differently from C) -> true or false

Double > int (it cant store decimals)
char = 'a' NOT char = "a" -> For single character: ' '
STATIC TYPING -> NOT compiling if a variable is assigned a value of a different type from the declared

Any sequence of characters between " "
To create a string:
- String something = "something";
- String something = new String("something") -> New String OBJECT
"" allows to break the sequence and add different things
- Bytes, different characters, etc
  - " \\ " -> " \ " | " \" " -> " " "

Variables can start with just normal alphabetic characters, or $, or a _, but they are special characters, that serves specific purposes
Variables are case sensitive
For readability and convention reasons:
- Start with lowercase
- InsteadOfUsingSpace, use capital letters to indicate that "isEven", for example
- Avoid numbers in general
- Try to make it objective and simple

Summary:

Data types:

int, which stores whole numbers.
double, which stores bigger whole numbers and decimal numbers.
boolean, which stores true and false.
char, which stores single characters using single quotes ( ' ' ).
String, which stores multiple characters using double quotes ( " ").

Static typing -> Avoids putting the wrong data type in a certain variable (Better safety).

Manipulation of variables

Addition -> + and ++ to add 1
Subtraction -> - and -- to subtract 1
Multiplication -> *
Division -> / (If it is dividing a int value, it floors it if there is any floating point in it)
Modulo -> %
Power -> Math.pow() (we need to import java.lang.Math first )

Operation order:

Order	Operator
1	Parenthesis
2	Exponents
3	Modulo/Multiplication/DIvision
4	Addition/Subtraction

Assignment operators:

final Keyword -> The variable declared after cannot be manipulated anymore