CPSC 2150 - DAY 6
SEPTEMBER 6, 2016

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PROCEDURAL VS. OOP 
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programs are a collections of objects vs. collection of subroutines

Declaration and definition of method are in the same file.

member variables - class variable
local variable - method variable

static variables belong to the class, not the instance of the class.

static members cannot access instancce members
	.multiple instances possible, you can't know which one

Do not access static members through object references

use class name.static variable for enhanced readability

System is a class in the Java library
	.Out is a static field of System(avaliable from class)
		.println is an overloaded method in printstream

static method - a method that you can call without instantiating a class

args: an array of command-line argument (args is just Java convention)

final: is similar to const.  means the field cannot change.

Magic number - a number that's not explained in the code.

enums - for finate number of legal values

enum Suits{
	CLUBS, DIAMONDS, HEARTS, SPADES
}

package directly corresponds to folder structure
must appear at the top of the file