Answer to Question #213007 in C++ for Hemambar

Question

Define a class Student with data members as rollno and name. Derive a class Fees from student that has a data member fees and functions to submit fees and generate receipt. Derive another class Result from Student that displays the marks and grade obtained by the student. Write a program that extends the class Result so that the final result of the Student is evaluated based on the marks obtained in tests, activities and sports

Answer 1

using namespace std;


class Student
{
	public:
		unsigned rollno;
		string name;
	public:
		void set_data(unsigned int rn, string s)
		{
			rollno = rn;
			name = s;
		}
		
};


// Derived class
class Fees: public Student
{
    public:
   		unsigned int Fee;
   	public:
	   void SubmitFee(unsigned int f)
	   { 
       		 Fee = f;
       }
       void GenerateReport(void)
       {
       		cout<<"\n\nFee Report:";
			cout<<"\nName     : "<<name;
       		cout<<"\nRoll No. : "<<rollno;
       		cout<<"\nFee      : "<<Fee;
	   }
};


// Derived class
class Result: public Fees//Student
{
    public:
   		unsigned int MarksTests;
   		unsigned int MarksActivities;
   		unsigned int MarksSports;
   		unsigned int TotalMarks;
   		char Grade;
   	public:
	   void set_marks(unsigned int ms, unsigned int ma, unsigned msp)
	   { 
			MarksTests=ms;
       		MarksActivities = ma;
       		MarksSports = msp;
       		TotalMarks = MarksTests + MarksActivities + MarksSports;
			if(TotalMarks>80)
			{
				Grade = 'A';
			}
			else if(TotalMarks>70 && TotalMarks<=80)
			{
				Grade = 'B';
			}
			else if(TotalMarks>60 && TotalMarks<=70)
			{
				Grade = 'C';
			}
			else if(TotalMarks>50 && TotalMarks<=60)
			{
				Grade = 'D';
			}
			else{
				Grade ='E';
			}
       }
       void GenerateResult(void)
       {
       		cout<<"\n\nResult Card";
       		cout<<"\nMarks in Tests     : "<<MarksTests;
       		cout<<"\nMarks in Activities: "<<MarksTests;
       		cout<<"\nMarks in Sports    : "<<MarksTests;
       		cout<<"\nTotal Marks        : "<<TotalMarks;
       		cout<<"\nFinal Grade        : "<<Grade;
	   }


};
main(void)
{
	Result S1,S2,S3;
    S1.set_data(111,"ABC");
    S1.SubmitFee(100);
    S1.GenerateReport();
    S1.set_marks(30,40,80);
    S1.GenerateResult();


    S2.set_data(222,"LMN");
    S2.SubmitFee(100);
    S2.GenerateReport();
    S2.set_marks(67,88,99);
    S2.GenerateResult();


    S3.set_data(333,"XYZ");
    S3.SubmitFee(100);
    S3.GenerateReport();
    S3.set_marks(89,80,98);
    S3.GenerateResult();
}