How can I download Swift?
To use Swift, download Xcode 6 and start using it to develop iOS 8 apps. Mac apps will become available with the release of Yosemite. More resources are available here: https://developer.apple.com/swift/resources/
Just open Xcode 6, click on new project, select single view project (or any of your choice), next screen select Swift as your programming language. See the Language dropdown in the screenshot below.
