It's not funny how to live.

Getting Started with Java I have finished learning, and I learned the basics of encapsulation, inheritance, polymorphism and abstraction then I have started to learn some key words, always feel that their progress is a bit slow, feel a bit stupid, also may be the first contact these things, get started here I looked at two times to understand. I looked at the static keyword in the morning. I know what it says, but I just feel like I can't tell. Maybe I'm not very good at these exchanges. I don't know how to say that the objects in the heap that can be fixed by static variables have become the same. The following example is better explained:

It's not funny how to live.