#include #include //using Inline function approach class CSum { private: int firstnumber; int secondnumber; int result; public: // Function used to get input from keyboard void inputData() { cout<<"Enter First Number==> "; cin>>firstnumber; cout<<"Enter Second Number==>> "; cin>>secondnumber; } // use to sum the numbers void sumData() { result =firstnumber+secondnumber; } // use to display result void displayData() { cout<<"The Result is = " <