Lists

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Lists1.swift

#!/usr/bin/env swift;
import Foundation
import Utils

func main() -> Void {
	let NUM_SQUARES:Int = 5
	var squares:[Int] = []
// Put the squares into the list
	for i:Int in 0..<NUM_SQUARES {
		squares.append(i * i)
	}
// Print out the squares from the list
	for i:Int in 0..<squares.count {
		print(Utils.format("{0:d}^2 = {1:d}", i, squares[i]))
	}

	print(Utils.listToString(squares))
	exit(EXIT_SUCCESS)
}
main()

Lists2.swift

#!/usr/bin/env swift;
import Foundation
import Utils

func main() -> Void {
	var squares:[Int] = [0, 1, 4, 9, 16, 25]

// Print out the squares from the list
	for i:Int in 0..<squares.count {
		print(Utils.format("{0:d}^2 = {1:d}", i, squares[i]))
	}
	exit(EXIT_SUCCESS)
}
main()

Lists3.swift

#!/usr/bin/env swift;
import Foundation

func main() -> Void {
	var names:[String] = ["Fred", "Wilma", "Barney", "Betty"]

	for name in names {
		print("Hello, " + name + "!")
	}

	names = ["Harry", "Ron", "Hermione"]
	for name in names {
		print("Hello, " + name + "!")
	}
	exit(EXIT_SUCCESS)
}
main()

Lists4.swift

#!/usr/bin/env swift;
import Foundation
import Utils

func main() -> Void {
// Print out the command line arguments
	for i:Int in 1...(CommandLine.arguments.count - 1) {
		print(String(i) + ":" + CommandLine.arguments[i])
	}
	exit(EXIT_SUCCESS)
}
main()

Lists5.swift

#!/usr/bin/env swift;
import Foundation
import Utils

func main() -> Void {
	var names:[String] = ["Fred", "Wilma", "Barney", "Betty"]

// Print out the name based on command line argument 1-4
	for i:Int in 1...(CommandLine.arguments.count - 1) {
		let x:Int = Int(CommandLine.arguments[i]) ?? 0
		print(String(i) + ":" + names[x - 1])
	}
	exit(EXIT_SUCCESS)
}
main()

Questions

• {{Who's on first?}}
• {{Who's on second?}}
• {{Who's on third?}}

Projects

More ★'s indicate higher difficulty level.

• Array Last Element
• Central Limit Theorem
• Chromatic Scale Frequencies
• Income Tax (Revisited)
• Morse Code
• Renard Numbers (Preferred Numbers)
• Sample Mean and Standard Deviation
• Sieve of Eratosthenes

References

• [[Swift Community]]
• [[Swift Language Guide]]
• [[Swift Language Reference]]
• [[Swift Programming Language]], Apple Inc.
• [[Swift Doc]]
• [[We Heart Swift]]
• [[Swift Cookbook]]
• [[Swift Playground]]
• [[Swift at TutorialsPoint]]
• [[Hacking with Swift]]