Selection

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Selection1.swift

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

// Begin Main
print("Start...")
if CommandLine.arguments.count != 3 {
	print("You need at least two command line arguments!")
}
print("Finish...")

exit(EXIT_SUCCESS)

Selection2.swift

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

// Begin Main
let x:Int = Int(CommandLine.arguments[1]) ?? 0
print("Start...")
if x > 10 {
	print("Greater than 10")
} else {
	print("Less than or equal to 10")
}
print("Finish...")

exit(EXIT_SUCCESS)

Selection3.swift

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

// Begin Main
let x:Int = Int(CommandLine.arguments[1]) ?? 0
print("Start...")
if x > 1000 {
	print("Greater than 1000")
} else if x > 100 {
	print("Greater than 100 but less than or equal to 1000")
} else {
	print("Less than or equal to 100")
}
print("Finish...")

exit(EXIT_SUCCESS)

Selection4.swift

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

// Begin Main
let x:Int = Int(CommandLine.arguments[1]) ?? 0
switch x {
	case 1:
		print("One")
	case 2:
		print("Two")
	case 3, 4:
		print("Three or Four")
	default:
		print("Just don't know!")
}

exit(EXIT_SUCCESS)

Selection5.swift

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

// Begin Main
var x:String = Utils.substr(CommandLine.arguments[1], 0, 1)
x = x.lowercased()
switch x {
	case "a", "e", "i", "o", "u":
		print(Utils.format("{0:c} is a vowel", Utils.ord(x)))
	case "y":
		print("y is sometimes a vowel")
	default:
		print(Utils.format("{0:c} is a consonant", Utils.ord(x)))
}

exit(EXIT_SUCCESS)

Questions

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

Projects

More ★'s indicate higher difficulty level.

• FICA Taxes (Revisited)
• FICA Taxes (Empoyee and Employer)
• Football Passer Rating (NFL and NCAA)
• Income Tax (Single Taxpayer)
• Income Tax
• Pythagorean Theorem
• Retirement Calculator

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]]