hw

Lab 3 - Triangle
	Use Geomertric object from files for lab#3

#13.9 - Circle
	add comparable
	override equals method
	similar to rectangle
	add a main to test


Test---------------------------------------------------

Review Abstract & interfaces
revisit employee, rectangle
Review for next week's test


Review--------------------------------------------------

Overloads- Same name method but different parameters.
Override- Same name, same parameters
Inheritance - different class

CONSTRUCTOR- Same name as class, invoked with new operator, no return type (not even void)

METHOD- Any legal name, invoke with a method call, any return type


Wrappers - Provide more functionality
	Double - double
	Character - char


Static- Shared by whole class
	Static method- invoke without creating an instance
Final - Constant
	Final Method- Child cannot override parent method
	Final Class - Cannot extend class (Math)

Child can do anything the parent does plus what the child adds

Why instance of?
	To test for a certain type of object

Super - to go up a generation
private - within the class
protected - within the family
public - everyone