prac_002.cpp

Metadata

• Author — Amit Dutta (amitdutta4255@gmail.com)
• Last updated — 22 Jun 2026
• License — MIT

Problem Statement

Problem Statement

design a class circle.take radius as input, calculate the area

Source Code

View on GitHub Download Raw

Printing the code

To print this file, open it on GitHub and click Raw before printing, or use the Download Raw button above and print directly from that page.

#include <iostream>
using namespace std;

class circle {
    int radius, area;

public:
    int input();
    int calculation();
    int output();
};

int circle::input() {
    cout << "\nEnter the radius of the circle : ";
    cin >> radius;
}

int circle::calculation() {
    area = 3.14159 * radius * radius;
}

int circle::output() {
    cout << "\nThe area of the circle is : " << area;
}

int main() {
    circle z;
    z.input();
    z.calculation();
    z.output();
    return 0;
}