Xcode is hidden in OS X 10.8.2 Now I am using OS X 10.8.2. I have installed Xcode 4.5 on my Mac. It has completely installed and I am able to open sample Xcode projects. The problem is Xcode is not displayed in the Application folder. 

How can I make Xcode visible in the Finder?
Since Xcode is working without a problem, it is probably installed correctly. You can unhide the application the same way you unhide the ~/Library folder on Lion and later. Open the terminal and enter the following command:

chflags nohidden /Applications/Xcode.app


Xcode should be visible in the Finder.

If you have any problems with Xcode not building or running properly I would recommend deleting Xcode and reinstalling from the App store.