Java (menghitung keliling lingkaran)

import java.io.*;

public class keliling 

{

    public static void main (String [] args) throws IOException

{

        double phi=3.14;

        double keliling ;

        double r;

        BufferedReader br;

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

        for(int i=0;i<3;i++);

{

        System.out.println("masukan jari-jari : ");

        r=Double.parseDouble(br.readLine());

        keliling=2*phi*r;

        System.out.println("KELILING : " +keliling );

}

}

}