/*
* CircleCircumference.java
* An application to find and display the circumference of a circle
* Julian Webb
* ICTP12
* 03/11/11
*/
import java.util.Scanner; //use package that lets us collect data from user
/*
* The Digit class finds and displays the circumference of a circle
*/
public class CircleCircumference { //start class definition
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
final double PI = 3.1415926535; //set const PI to 3.1415926535
double radius; //variable for radius of circle (data from User)
double circum; //variable for circumference of circle (calculated)
System.out.print("Enter a circle radius: "); //Asks user for radius
radius = input.nextDouble(); //collects double from user for radius
circum = 2 * PI * radius; //calculates circumference
System.out.println("The Circumference for this circle is: " + circum); //displays circumference
}
} //end class definition