I currently have and use Xcode 5, and while I\'d like to experiment with Xcode 6, I don\'t want to use it for production. Can I have both of them installed on the same compu
yes you can have two separate version on same mac
Xcode 6 on the Mac App Store will replace the existing Xcode installation. Only the Xcode betas install separately (by default)
Only downloading Xcode from https://developer.apple.com/downloads/ and doing the install manually (by copying Xcode from the DMG to /Applications) will prompt you to replace or keep both.
Select the keep both option when prompt.