Re: Write variable from other function

[Suliman]

When you declare variable static it makes it shared between all 
instances of that class, allowing to use it without any 
specific instance. When you declare method as static you say to 
compiler that it is not going to use any non-static fields of 
the class (normally available via "this" pointer) and make it 
possible to call it as `Config.method`.

Thanks! I know about static, but now I need experience to work 
with class constructor. So now I can't understand what I can do 
with error: "Error: need 'this' for 'isConfigExist' of type 
'bool()'"