Design a class Grading with the methods, get$\_$RegNo$()$ and put$\_$RegNo$()$ to read and display the

Reg$\_$No of each student and get$\_$ Acad$()$ and put$\_$Acad$()$ to read and display their marks in $5$

subjects$($Maximum mark in each subject is $100).$ Declare the Reg$\_$No & marks as private data members.

Create an interface called Co$\_$Curricular with get$\_$Score$()$ to read the points scored in Co$-$curricular

activities $($Maximum score is $100)$ and methods put$\_$Score$()$ that will display the score obtained by a

student in Co$\_$Curricular activities. Design a class called Result that will implement the methods

get$\_$Score$()$ to put$\_$Score$()$ and generate the final score $($Maximum score is $100)$ based on the marks

obtained from the Co$-$Curricular activities $(20\%)$ and the Academic score$(80\%)$ obtained from the

superclass Student. Write a demo class to create an object of Result class, input the details and display

the final score