non-static method cannot be referenced from a static context

Question

I would like to understand this once and for all.

With this please excuse the mass of code pasted below, but I do not want to leave out any details.

The only

Answer 1

Real solution? Don't put so much stuff in the main() method. That's for noobs.

Java's an object-oriented language. Put the logic inside methods associated with the GarageComm class. main() should do little more than instantiate an instance and call its methods.

Change it like this:

            GarageComm gc = new GarageComm();
            hashPos= gc.readPositions("holdingsBU.txt");//the error is here