Print the area of a circle
import java.util.Scanner; public class Circle { public static void main(String[] args) {/*w w w.java 2 s . c om*/ Scanner scan = new Scanner (System.in); final double PI = 3.14159; int radius; System.out.println("Please enter a value for the radius of a circle"); radius = scan.nextInt(); double area = PI * radius * radius; double circumf = 2 * PI * radius; System.out.println("The area of a circle with radius " + radius + " is " + area); System.out.println("The circumference of a circle with radius " + radius + " is " + circumf); } }