Swift Examples

Dave Braunschweig

File:Swift logo with text.svgOverview

Swift is a general-purpose, multi-paradigm, compiled programming language developed by Apple Inc. for iOS, macOS, watchOS, tvOS, and Linux. Apple intended Swift to support many core concepts associated with Objective-C, but in a “safer” way, making it easier to catch software bugs. Swift was introduced in 2014.[1]

Swift is a popular programming language for the Apple platforms it supports, but it lacks support for Microsoft Windows environments.[2]


Hello World

// This program displays "Hello world!"
// References:
//     https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/GuidedTour.html

print("Hello world!")


Hello world!


Each code element represents:[3]

  • // begins a comment
  • print() calls the print function
  • "Hello world!" is the literal string to be displayed

Swift IDEs

There are several free cloud-based and local IDEs available to begin coding in Swift. Check with your instructor or do your own research for recommendations.

Cloud-Based IDEs

Local IDEs



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Programming Fundamentals Copyright © 2018 by Dave Braunschweig is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License, except where otherwise noted.

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