1. Create an interface OnlineQuiz with the following details: Member variables:totalMarks=10Member Methods:· nQuestions(): An abstract method that calculates and return the number of questions. Defined in subclass.· display(): An abstract method that displays all details. Defined in a subclass. 2. Create a class Staff that inherits OnlineQuiz with the following details:Member variables:· staffD // id of the staff string type· staffName // Name of the staff string type· nMCQ // Number of MCQ type questions int type· nTF // Number of true/false type questions int type· nMatch // Number of match type questions int typeMember Methods:· Define the parameterized constructor to set the member variables.· Define the method nQuestions(): which calculate and return the total number of questions. Total number of question= nMCQ + nTF + nMatch · Define the method marksMCQs() which find and returns the marks of MCQs type as given below: ConditionMarks of MCQsnTF=4 and nTF=2totalMarks-6nTF=4 and nTF=3totalMarks-3Otherwise5 · Define the method display() which display all details including total marks and grade of the student.3. Create a Driver class to execute the above class construction with the following details:· Create an object of Student class. Use given sample input for your construction: Staff("e123","Said Salim",4,3,3)· Display the Total marks. 1.Create an interface OnlineQuiz with the following details:Member variables:totalMarks=10Member Methods:nQuestions0: An abstract method that calculates and return the number of questions. Defined in subclass.display(): An abstract method that displays all details. Defined in a subclass.2.Create a class Staff that inherits OnlineQuiz with the following details:Member variables:staffDstaffNameNMCQnTF// id of the staff string type// Name of the staff string type// Number of MCQ type questions int type// Number of true/false type questions int type// Number of match type questions int typenMatchMember Methods:Define the parameterized constructor to set the member variables.Define the method nQuestions0: which calculate and return the total number of questions.Total number of question= nMCQ + nTF + nMatchDefine the method marksMCQs() which find and returns the marks of MCQ type as given below:ConditionMarks of MCQShTF=4 and nTF=2totalMarks-6totalMarks-3hTF=4 and nTF=3Otherwise5Define the method display) which display all details including total marks and grade of the student.3.Create a Driver class to execute the above class construction with the following details:Create an object of Student class. Use given sample input for your construction:Staff("e123","Said Salim",4,3.3)Display the Total marks.

Note- Answering the first question as per the guidelines. The following is the interface created in…

Answered: Create an interface OnlineQuiz with the…

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter11: Advanced Inheritance Concepts

Section: Chapter Questions

Problem 5RQ

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1. Create an interface OnlineQuiz with the following details: Member variables: totalMarks=10 Member Methods: · nQuestions(): An abstract method that calculates and return the number of questions. Defined in subclass. · display(): An abstract method that displays all details. Defined in a subclass. 2. Create a class Staff that inherits OnlineQuiz with the following details: Member variables: · staffD // id of the staff string type · staffName // Name of the staff string type · nMCQ // Number of MCQ type questions int type · nTF // Number of true/false type questions int type · nMatch // Number of match type questions int type Member Methods: · Define the parameterized constructor to set the member variables. · Define the method nQuestions(): which calculate and return the total number of questions. Total number of question= nMCQ + nTF + nMatch · Define the method marksMCQs() which find and returns the marks of MCQs type as given below: Condition Marks of MCQs nTF=4 and nTF=2 totalMarks-6 nTF=4 and nTF=3 totalMarks-3 Otherwise 5 · Define the method display() which display all details including total marks and grade of the student. 3. Create a Driver class to execute the above class construction with the following details: · Create an object of Student class. Use given sample input for your construction: Staff("e123","Said Salim",4,3,3) · Display the Total marks.

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