tugas algoritma modul 4

import java.util.Scanner;

public class Lingkaran

{

public static void main(String args[])

{

Scanner masuk = new Scanner(System.in);

float phi = 3.14f;

int r;

float keliling, luas;

System.out.println("Jari - jari Lingkaran: ");

r = masuk.nextInt();

keliling = 2 * phi * r;

luas = phi * r * r;

System.out.println("Keliling Lingkaran: " + keliling);

System.out.println("Luas Lingkaran: " + luas);

}

}