add_sub.cpp

#include <iostream>
using namespace std;

class calc
	    {
	        int a,b;
	        public:
	        void getdata()
	            {
	                cout<<"Enter a:"<<endl;
	                cin>>a;
	                cout<<"Enter b:";
	                cin>>b;
	            }
	        int add()
	            {
	                return a+b;
	            }
	        int sub()
	            {
	                return a-b;
	            }
	    };

int main() {
	// your code goes here
    calc c;
    int sum,substract;
    c.getdata();
    sum=c.add();
    substract=c.sub();
    cout<<endl<<"Addition:"<<sum<<" and Substraction:"<<substract;
	return 0;
}


=============================output======================================
Enter a:2
Enter b:1
Addition:3 and Substraction:1