In this lab assignment, you are asked to write java code of given classes in the following class diagram. You are given an UML diagram that expresses relationship between three classes. Circle class is the parent class of the Curve and Cylinder classes. Also, you are given Circle.java and testlnheritance.java files. Examine the given UML diagram and code. 1) Add variable definitions to the Circle class. Be careful about accessibility modifiers given in the UML 2) Implement the getArea method.