I have compiled a program on a text editor, the program being one example from the book I am studying, i saved it as produzioneScooter.java on my desktop, then I imported in GDB compiler online and launched it. An error comes out, that produzioneScooter is a public class and this must be stated in a produzioneScooter.java file. But as a matter of fact I already created such a file so what's wrong here? Please help me I am completely stuck with this problem