Answer to Question #244769 in C++ for Ali

Question

#include<iostream>
using namespace std;
class add //Specifies the class
{
private:
int iNum1, iNum2, iNum3; //Member data
public:
void input(int iVar1, int iVar2) //Member function
{
cout<<"Functions to assign values to the member data"<<endl;
iNum1=iVar1;
iNum2=iVar2;
}
void sum(void) //Member function
{
cout<<"Functions to find the sum of two numbers"<<endl;
iNum3=iNum1+iNum2;
}
void disp(void) //Member function
{
cout<<"The sum of the two numbers is "<<iNum3<<endl;
}
};
/////////main function of the program///////////
void main()
{
add A1;
int iX, iY;
cout<<"Input two numbers"<<endl;
cin>>iX;
cin>>iY;
A1.input(iX, iY);
A1.sum();
A1.disp();
system("pause");
}
Code the example given above and check the errors if you try to access the private
data members in main() function.

Answer 1

#include<iostream>


using namespace std;


class add //Specifies the class
{
private:
	int iNum1, iNum2, iNum3; //Member data
	void input(int iVar1, int iVar2) //Member function
	{
		cout<<"Functions to assign values to the member data"<<endl;
		iNum1=iVar1;
		iNum2=iVar2;
	}
	void sum(void) //Member function
	{
		cout<<"Functions to find the sum of two numbers"<<endl;
		iNum3=iNum1+iNum2;
	}
	void disp(void) //Member function
	{
		cout<<"The sum of the two numbers is "<<iNum3<<endl;
	}
public:
	void input(){
		int iX, iY;
		cout<<"Input two numbers"<<endl;
		cin>>iX;
		cin>>iY;
		input(iX,iY);
		
	}
	void report(){
		sum();
		disp();
	}
};


/////////main function of the program///////////


void main(){
	add A1;
	A1.input();
	A1.report();
	system("pause");


}