Program for area of a circle using class in C++
Program for area of a circle using class: #include<iostream> using namespace std; class circle { float r; float area; public: void getdata() { cout<<"Enter the value: "<<endl; cin>>r; } void showdata() { area=3.14*r*r; cout<<"Area is: "<<area; } }; int main() { circle c; c.getdata(); c.showdata(); } output: Enter the value: 4 Area is: 50.24