27.7.8: Swift Examples
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// This program demonstrates array processing, including: // display, total, max, min, parallel arrays, sort // multidimensional arrays, and dynamic arrays. // // References: // https://www.mathsisfun.com/temperature-conversion.html // https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/TheBasics.html import Foundation func displayArray(array: [Int]) { for index in 0...array.count - 1 { print("array[" + String(index) + "] = " + String(array[index])) } } func displayParallel(names:[String], ages:[Int]) { for index in 0...names.count - 1 { print(names[index] + " is " + String(ages[index])) } } func displayMultidimensional() { var game: [[String]] game = [ ["X", "O", "X"], ["O", "X", "O"], ["X", "O", "X"] ] for row in 0...2 { for column in 0...2 { print(game[row][column], terminator:"") if column < 2 { print(" | ", terminator:"") } } print() } } func dynamicArray() { var array: [Int] = [] srand(UInt32(time(nil))) for _ in 0...4 { array.append(random() % 100) } print(array) } func main() { var names: [String] var ages: [Int] var total: Int var maximum: Int var minimum: Int names = ["Lisa", "Michael", "Ashley", "Jacob", "Emily"] ages = [49, 48, 26, 19, 16] displayArray(array:ages) total = ages.reduce(0, +) maximum = ages.max()! minimum = ages.min()! print("total:", total) print("maximum:", maximum) print("minimum:", minimum) displayParallel(names:names, ages:ages) ages.sort() displayArray(array:ages) displayMultidimensional() dynamicArray() } main()
array[0] = 49 array[1] = 48 array[2] = 26 array[3] = 19 array[4] = 16 total: 158 maximum: 49 minimum: 16 Lisa is 49 Michael is 48 Ashley is 26 Jacob is 19 Emily is 16 array[0] = 16 array[1] = 19 array[2] = 26 array[3] = 48 array[4] = 49 X | O | X O | X | O X | O | X [93, 3, 7, 35, 59]