Please Solve the Question in C++ as quickly as you can in 40 minutes. And do the same as asked in the question. Don't use extra things, please.
Write a class named Grade that has the following member variables and functions.
Variables
:
protected: double
score, char
letter
Functions: Required Constructors
Getscore() //
it will return score
Getgrade()
// it will assign the grades to letter variable and returns it. If score> 89 then A, > 79 then B, ..>69 then C, > 59 then D, else F.
Derive a class named
PassFail
publically from class
Grade
that has the following member variables and functions.
Variables: private:
MinPassing
Functions: Required constructors
Getgrade() // it will return “P” if score >=MinPassing else return “F”
Derive a class named
FinalExam
publically from class
PassFail
that has the following member variables and functions.
Variables
:
private
:questions (total questions), missed(missed questions), points (points of each question)
Functions: Required constructors
CalculateScore()
// it will calculate points of each question if total marks are
80. It will also calculate the final score and assign it to the
score
variable in
Grade
class.
In a course, a teacher gives the following tests and assignments:
- A lab activity that is observed by the teacher and assigned a numeric score.
- A
PassFail
exam that is also observed by the teacher and assigned a numeric score. The minimum passing score is 70.
- A
FinalExam
that has 50 questions.
Write a class named
CourseGrades
. The class should have a member named
grades
that is an array of
Grade
pointers. The
grades
array should have 3 elements, one for each of the assignments previously described.
The class should have the following member functions:
setLab
: This function should accept the address of a
Grade
object as its argument. This object should already hold the student’s score for the lab activity. Element 0 of the
grades
array should reference this object.
setPassFail
: This function should accept the address of a
PassFail
object as its argument. This object should already hold the student’s score for the
PassFail
exam. Element 1 of the
grades
array should reference this object.
setFinalExam
: This function should accept the address of a
FinalExam
object as its argument. This object should already hold the student’s score for the Final exam. Element 2 of the
grades
array should reference this object.
print
: This function should display the
numeric scores
and
grades
for each element in the grades array. Make sure that for PassFail object, P or F is displayed and for FinalExam object, grade (A – F) is displayed.
Write a main function that will declare and initialize pointer objects of type
Grade, PassFail and FinalExam
using constructor. Then declare object of
coursegrades
class and call the setLab, setPassFail setFinalExam and print function.
Note:
Do not change the names of functions and variables. Otherwise, marks will be deducted. Do not define extra functions except for required
constructors.