27.2.5: Swift Examples
-
- Last updated
- Save as PDF
Overview
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] .
Example
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!")
Output
Hello world!
Discussion
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.
Local IDEs
- AppCode
- Atom
- Xcode
References
- Wikiversity: Computer Programming
-
Swift (programming language)
↵
-
TIOBE: Index
↵
-
Wikibooks: Programming Fundamentals/Hello World
↵