How do I create program launcher on Gnome classic desktop for Ubuntu 12.04?

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http://askubuntu.com – I am using the Gnome Classic desktop for my Ubuntu 12.04 PC. One of the thing that I am not able to do at the moment is placing program launchers (plus icon) on the desktop. I can create an item for the program on the 'Applications' menu but I prefer clicking on an icon on the desktop to launch a program. Anybody can give me pointers on how to do this? (HowTos)