Please explain how to do each of the following:
Create a Scanner object
Retrieve different types of input from the user (.nextLine(), .nextDouble(), .next(), etc.)
Extend a class
Define a new class
Create a sub-class from a super/base class
Create an instance variable
Create a class object
Call class methods
Override a Method
Create a While Loop and For Loop
Create an if-statement and Case Statement
Draw a line using 4 points, draw a circle or filled circle using diameter and coordinates.