Design a Java class named Polygon that contains: A private int data field named numSides that defines the number of sides of the polygon. The...

Need help with the attached Java assignment and this separate assignment stated below as soon as possible. 

Provide Java code for a simple class of your choice. Be sure to include at least one constructor, two methods and two fields. The fields should be private.

Create a test class to construct and call the methods of your class.  This should be a separate Java file.

Describe your class and demonstrate your code functions properly.  Submit your Java file and an example of output.