Started the wok on the zahid code. 
Added the pharma item pojo and the form to add new items.
Modified the mainwindow cotroller
Added the salebillPharma for the pharma
Edited the ItemsPharma for the vat %
also included the vat in the itemspharma
The salebill view is now been shown but the items are not added. the main thing for which I took 2 hours.
The salebill view is now been shown but the items are not added. the main thing for which I took 2 hours.1