public static double circleArea (double xc, double yc, double xp, double yp) { double radius = distance(xc, yc, xp, yp); double area = calculateArea(radius); return area; } public static double calculateArea (double xc, double yc, double xp, double yp) { return calculateArea(distance(xc, yc, xp, yp)); } System.out.println("circleArea"); System.out.println(circleArea(1.0, 2.0, 4.0, 6.0)); System.out.println("calculateArea with 4 doubles"); System.out.println(calculateArea(1.0, 2.0, 4.0, 6.0));