**Java Program to Calculate the Area of Circle**

In this program, we will learn to calculate and display the area of a circle. To calculate the area of the circle we have to use a formula that is: (22*r*r)/7. Here “r” means the radius of the circle.

### Algorithm to Calculate the area of the circle

- import java.io.*;
- import java.util.*;
- create class Area
- public static void main(String[] args)
- Scanner ob = new scanner (System.in)’
- double r;
- System.out.print(“Enter radius”);
- r = ob.nextInt();
- double area = (22*r*r)/7.
- System.out.print(” Area of the Circle is: ” + area);

### Source Code to Print the area of Circle

import java.io.*;

import java.util.*;

class Area

{

public static void main(String []args)

{

Scanner ob=new Scanner(System.in);

double r;

System.out.println(“enter value r”);

r=ob.nextInt();

double c = (22*r*r)/7;

System.out.println(“area of circle: ” +c);

}

}

### Execute Code Here

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