public class ComputeArea {

  /** Main method */

  public static void main(String[] args) {

    double radius; // Declare radius
    double area; // Declare area


    // Assign a radius
    radius = 20; // New value in radius


    // Compute area
    area = radius * radius * 3.14159; // New value in area


    // Display results
    System.out.println("The area for the circle of radius " +

      radius + " is " + area);

  }

}