Hi,

import java.io.*;

public class CircleArea{
public static void main(String[] args){
try{
BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter Radius of Circle : ");
int r = Integer.parseInt(br1.readLine());
double area = java.lang.Math.PI*r*r;
System.out.println("Area of Circle : "+area);
double perimeter =2*java.lang.Math.PI*r ;
System.out.println("Perimeter of Circle : "+perimeter);
}
catch(Exception e){
System.out.println("Error : "+e);
}
}
}

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