Methods
Reference: Details
of a Method Declaration
Methods are similar to functions, procedures or subroutines in
other languages.
The methods of a class expose the behavior of a class.
We will focus on class methods here, and discuss instance
methods later.
As with variable, a method become a class method
by the use of the static keyword.
Access keywords: public,
protected, or private.
Return type: any Java data type or void.
