Java Inheritance 1,Eassy class Design an Essay class that extends the GradedActi

Question

                    Java          Inheritance

1,Eassy class

Design an Essay class that extends the GradedActivty class presented in this chapter. the Eassy class should determine the grade a student receives for an eassy. The student's eassy score can be up to 100 and is determined in the following manner:

        *Grammar: 30 points

        *Spelling: 20 points

        *Correct lenght: 20 points

        *Content: 30 points

Demonstrate the class in a simple program.

2,PreferredCustomer Class

Design a class named Person with fieds for holding a person's name,address, and telephone number. Write one or more constructors and the apporpriate mutator and accessor methods for the class's fields.

Next,design a class named Customer,which extends the Person class. The Customer class should have a field for a customer number and a boolean field indicating whether the customer wishes to be on a mailing list. Write one or more constructors and the appropriate mutator and accessor methods for the class's fields. Demonstrate an object of the Customer class in a simple program.

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Explanation / Answer

Next,design a class named Customer,which extends the Person class. The Customer class should have a field for a customer number and a boolean field indicating whether the customer wishes to be on a mailing list. Write one or more constructors and the appropriate mutator and accessor methods for the class's fields. Demonstrate an object of the Customer class in a simple program.

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