How to access the instancing class

[MartinF]

Hi there,

Kinda new to Java, and trying to reference the class that created an instance of the class i am referencing from.

i.e.
If Class A creates an instance of Class B, how can i write code in Class B that accesses a member (a variable in this case) of Class A. The instance of Class B was created under the default constructor public B(){...}

I did try searching the forum but wasnt quite sure what to search for. Im sure this must be very simple.

Thanks in advance

 

[Diancecht]

It's not that simple because that's totally against the OO design principles.

If you want to access A from B, the reference to A should be passed in the B constructor.

You can use reflection but I wouldn't. If you're new, I'd encourage you to do things like they should be.

Cheers,
Dian

 

[MartinF]

Thanks for the feedback Dian,

This was the original way i was going to do it, but was wondereing if there was a shortcut method i didnt know about yet.

Martin