Write a class encapsulating a Grocery store,which inherits from Store. Store has the following attributes: name and sales tax rate; A grocery store has the following additional attributes: how many customers are served every week and the average sale amount per customer. code the constructor, accessors, mutators, toString and equals method of the super class Store and the subclass Grocery store; also in Grocery store - code a method returning the average taxes per year. You also need to include a client class to test your code for both the parent class and the subclass. You should test creating Store objects and Grocery store objects, your set methods and get methods, toString and equals methods.