How to programmaticly assign two NICs the same IP

Dear,

I am a student of Computer Sciences. I need some help regarding Network Interface Card.
I have two network cards installed in my system. I want to make a program which should assign single IP to both cards. I have two independent networks attatched with one machine. One network is attatched with NIC1 and other is with NIC2. I want both network to send data over one IP address. Can anyone help me to build such application.
If anyone can guide in such application, please do it.

your help will be highly appreciable

Fakhar