tyranneo

You have to add `System.exit(0);` at the end of your code, otherwise javac won't work properly. Also you could improve your code by creating two object class somthing like: public class Cylinder { private double radius; private double height; public Cylinder(double initialRadius, double initialHeight) { radius = initialRadius; height = …

I haven't exactly grasped what are you looking for but I second AncientDragon. You could also store your string 2b2 in a *stack* or , but you require to use structs and could be a little tricky to extract a pair in it.