This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
Why do we have marker interfaces, whats the use since they do not have anything(nethods,variables) inside them.
We need to implement the marker interfaces like Serializable,Cloneable etc .
Internally do these interfaces do anything may be use pointers or references or sthg thats not visible to the outside world ?