Question

Write a program in java to input the area of a circle and to calculate the radius of the circle.

Answer 1

import java.util.*;

public class Radius

{

public static void main(String args[])

{

Scanner in = new Scanner(System.in);

double a,r;

System.out.println("Enter the area of the circle");

a=in.nextDouble();

r=Math.sqrt(7*a/22);

System.out.println("The radius of the circle is"+r);

}

}

Answer 2

Hiii MATe ☺☺

Java Program to Calculate and Display Area of a Circle

public class Area.

int r;

double pi = 3.14, area;

Scanner s = new Scanner(System.

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

r = s. nextInt();

area = pi * r * r;

System. out. println("Area of circle:"+area);