import java.util.*;

public class CircleDemo2
{
    public static void main(String[] args)
    {
        double radius;
        System.out.println(
          "Enter the radius of a circle in inches:");
        Scanner keyboard = new Scanner(System.in);
        radius = keyboard.nextDouble( );
        System.out.println("A circle of radius "
                                      + radius + " inches");
        System.out.println("has an area of " +
             Circle.area(radius) + " square inches,");
        System.out.println("and a circumference of " +
             Circle.circumference(radius) + " inches.");
    }
}