CMIS 345
Week 1 assignment

 Modify the Circle class so that it has additional 
 data members: a Point object representing the circle's center,
               a Date object representing the circle's creation timestamp.
 Choose some meaningful default value for the center (i.e. the origin 0,0)
 
 Add a constructor that has radius and center point parameters.
                
 Add methods:               
double getCircumference()
Date getDate()
Point getCenter()

For organizational purposes, name the class Circle3.

Your Circle3 class should work with TestCircle3 and TestCircle3GUI
They will be used to test your Circle3 class.