Calculate Area of Circle in Java

Here you will get the program code to calculate area of circle in java and circumference of a circle.

What is Area of Circle?

The area of a circle is the total space inside its circumference. It is equal to the product of π (Pi) and the square of the radius of the circle.

Formula:

Area = π * radius²

Circumference = 2 * π * radius;

import java.util.Scanner;

class AreaofCircle

{

public static void main(String str[])

{

double area, circumference;

float pi=3.1416f;

Scanner scanner = new Scanner(System.in);

System.out.print("Enter the radius of circle : ");

double r = scanner.nextDouble();

scanner.close();

area=pi*r*r;

circumference=2*pi*r;

System.out.println("The area of the circle is: " + area);

System.out.println("The circumference of the circle is: " + circumference);

}

Output

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