Computer Science, asked by karthikreddy1723, 7 months ago

Write a Java program to find area and perimeter of circle whose radius is user input

Answers

Answered by kabir645
52

Explanation:

public class Circle.

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);

Answered by Aryan257553
2

Answer:

import java.io.*;

class Circle

{

           public static void main(String args[])

           {

                       int radius;

               

                       try

                       {

                               BufferedReader    br = new BufferedReader(new InputStreamReader(System.in));    

                               System.out.println("Enter the radius of a Circle: ");  

                               String str = br.readLine();

                               radius = Integer.parseInt(str);

                               double area, perimeter;  

                               area = 3.14 * radius * radius;      

                               perimeter=2 * 3.14 * radius;

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

                               System.out.println("Perimeter of Circle: " + perimeter);

                       }

                       catch(Exception e)

                    {

                                System.out.println("Error : "+e);                        

                      }    

           }

}

Explanation:

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