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Adding Arrays

waqqassheikh (100)
Hey Everyone,

I wrote a program to practise inheritance. It basically asks the student to enter his exam results for mid-term and end-term for an array of subjects and it calculates the average according to this statement:
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void Average::getAverage()
{
	for(i=0;i<9;i++)
	{
		average[i] = ((MidMarks[i]) + (FinalsMarks[i]))/2;
	}
}


The problem is adding two arrays produces a memory address. I know why this happens - but I don't know how to fix it, could anyone help me out with that.

If it is necessary, this is the complete code:
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#include <iostream>
#include <cstdlib>
#include <string>
using namespace std;

int i;//global variable

class Student
{
	public:
		void getData();
		void printData();
	private:
		string name;
		int ID;
		
};

void Student::getData()
{
	cout<<"Enter Name: "; cin>>name;
	cout<<"Enter ID: "; cin>>ID;
}

void Student::printData()
{
	cout<<"Name: "<<name<<"\t"<<"ID: "<<ID<<endl;
}

class Exam : public Student
{
	public:
		void getMids();
		void getFinals();
	protected:
		int MidMarks[8];
		int FinalsMarks[8];
};

void Exam::getMids()
{
	cout<<"Enter Marks received in the Mid-Term exams for following subjects: "<<endl;
	for(int i=0;i<9;i++)
	{
		cout<<"\tSubject "<<i+1<<":\t"; cin>>MidMarks[i];	
	}

}

void Exam::getFinals()
{
	cout<<"Enter Marks received in the End-Term exams for following subjects: "<<endl; 
	for(int i=0;i<9;i++)
	{
		cout<<"\tSubject "<<i+1<<":\t"; cin>>FinalsMarks[i];
	}
}

class Average : public Exam
{
	public:
		void getAverage();
	protected:
		int average[8];
};

void Average::getAverage()
{
	for(int i=0;i<9;i++)
	{
		average[i] = ((MidMarks[i]) + (FinalsMarks[i]))/2;
	}
}

class Results : public Average
{
	public:
		Results();
		void displayResults();
};

Results::Results()
{
	getData();
	getMids();
	getFinals();
	getAverage();
	system("clear");
	printData();
}

void Results::displayResults()
{
cout<<"Subject\t\tMid Term Marks(%)\tEnd Term Marks(%)\tAverage"<<endl;
cout<<"----------------------------------------------------------------------------------"<<endl;
	for(int l=0;l<9;l++)
	{
		cout<<l+1<<"\t\t"<<MidMarks[l]<<"\t\t\t"<<FinalsMarks[l]<<"\t\t\t"<<average<<endl;
	}
}

int main()
{
	Results Person;
	Person.displayResults(); 	
 return 0;	
}

blackcoder41 (1426)
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int average[8]
int FinalsMarks[8];
for(int i=0;i<9;i++)

remember that valid index for these arrays are 0 up to 7
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