How can I organize a project with exercises in NetBeans?

Question

I'm doing self-study with a book. It has a lot of different small exercises. I don't want to begin a new project everytime, so I want to keep them all in one place organized by chapters.

But I'm a complete beginner and having trouble even with that. Here's a picture of a mistake that pops up and you can kind of get an idea of what I'm trying to do:

"1p5" and "1p7" stand for exercises 1.5 and 1.7.

If you have an idea on how to organize that sort of thing better, help would be very appreciated.

Answer 1

Your problem from the image is that you forgot to add your call to System.out inside a method such as main :

class NewClass1p7 {
    public static void main(String... args) {
        System.out.println("...");
    }
}  

Your package organization seems fine and not related to the problem.