Swift - Storing Collections of Data Using Array(methods(count, removeAtIndex, insert, extend, reverse, sort), in place, copy)

The Swift Programming Language
Apple Inc.

開発環境

• OS X Mavericks - Apple(OS)
• Xcode 6.0 Beta
• Swift (プログラミング言語)

Practical Programming: An Introduction to Computer Science Using Python 3 (Pragmatic Programmers) (Paul Gries (著)、Jennifer Campbell (著)、Jason Montojo (著)、Lynn Beighley (編集)、Pragmatic Bookshelf)のChapter 8(Storing Collections of Data Using Array)、8.9(Exercises) 4-a, b, c, d, e, f.をSwiftで考えてみる。

8.9(Exercises) 4-a, b, c, d, e, f.

コード(Xcode)

main.swift

//
//  main.swift
//  sample4
//
//  Created by kamimura on 8/23/14.
//  Copyright (c) 2014 kamimura. All rights reserved.
//

import Foundation

var ids = [4353, 2314, 2956, 3382, 9362, 3900]
println(ids)

println("a.")

for i in 0..<ids.count {
    if ids[i] == 3382 {
        ids.removeAtIndex(i)
        break
    }
}
println(ids)

println("b.")
for i in 0..<ids.count {
    if ids[i] == 9362 {
        println(i)
        break
    }
}

println("c.")
for i in 0..<ids.count {
    if ids[i] == 9362 {
        ids.insert(4499, atIndex: i + 1)
        break
    }
}
println(ids)

println("d.")
ids.extend([5566, 1830])
println(ids)

println("e.")
ids = ids.reverse()
println(ids)

println("f.")
ids.sort({(a, b) -> Bool in  a < b})
println(ids)

入出力結果(Console Output)

[4353, 2314, 2956, 3382, 9362, 3900]
a.
[4353, 2314, 2956, 9362, 3900]
b.
3
c.
[4353, 2314, 2956, 9362, 4499, 3900]
d.
[4353, 2314, 2956, 9362, 4499, 3900, 5566, 1830]
e.
[1830, 5566, 3900, 4499, 9362, 2956, 2314, 4353]
f.
[1830, 2314, 2956, 3900, 4353, 4499, 5566, 9362]
Program ended with exit code: 0