hespelere

public class hahahaha {
public static void main(String[] args) {
    double diameter = 5; //set diameter to change end values//
    double radius = diameter/2;
    double circumference = diameter * Math.PI;
    double area = (diameter/2)*(diameter/2) * 3.14159;
        System.out.println ("diameter=" + diameter);
        System.out.println ("radius=" + radius);
        System.out.println ("circumference=" + circumference);
        System.out.println ("area=" + area);