MoraSoftware.github.io/collection.html at master · MoraSoftware/MoraSoftware.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
   <head>
      <title>Class Kotlin</title>
      <meta charset="utf-8">
      <meta http-equiv="X-UA-Compatible" content="IE=edge">
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <link rel="stylesheet" href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" type="text/css">
      <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Merriweather+Sans:400,300,700" type="text/css">
      <link rel="stylesheet" href="static/app.css" type="text/css">
      <link rel="shortcut icon" href="static/logo.png" />
      <meta name="theme-color" content="#111111">
      <meta name="og:type" content="website">
      <meta name="og:title" content="MoraSoftware.github.io">
      <meta name="og:description" content="Mora Software">
      <meta name="og:site_name" content="Mora Software">
      <meta name="og:url" content="{{ site.url }}">
      <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
      <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
   </head>
   <body>
      <div class="container">
         <div class="block">
            <form action="index.html">
               <input type="image" src="static/white.jpg" />
            </form>
         </div>
         <div class="block">
            <h2>Collection Kotlin</h2>
         </div>
         <ul class="nav nav-tabs">
            <li class="active"><a data-toggle="tab" href="#init">Collection</a></li>
            <li><a data-toggle="tab" href="#list">List</a></li>
            <li><a data-toggle="tab" href="#map">Map</a></li>
            <li><a data-toggle="tab" href="#set">Set</a></li>
         </ul>
         <div class="tab-content">
            <div id="init" class="tab-pane fade in active">
               <h3>Array</h3>
               <xmp>
                fun main(args: Array<String>) {

                  // Elements :   32  0   0   54  0
                  // Index    :   0   1   2   3   4

                  var myArray = Array<Int>(5) { 0 }   // Mutable. Fixed Size.
                  myArray[0] = 32
                  myArray[3] = 54
                  myArray[1] = 11

                  for (element in myArray) {              // Using individual elements (Objects)
                    println(element)
                  }

                  println()

                  for (Index in 0..myArray.size - 1) {
                    println(myArray[index])
                  }
                }
               </xmp>
               <hr>
               <p>Collection</p>
            </div>
            <div id="list" class="tab-pane fade">
               <h3>List</h3>
               <xmp>
                fun main(args: Array<String>) {

                  // Elements :
                  // Index    :   0   1   2   3   4

                  //    var list = mutableListOf<String>()  // Mutable, No Fixed Size, Can Add or Remove Elements
                  //    var list = arrayListOf<String>()    // Mutable, No Fixed Size, Can Add or Remove Elements
                  var list = ArrayList<String>()      // Mutable, No Fixed Size, Can Add or Remove Elements
                  list.add("Yogi")        // 0
                  list.add("Manmohan")    // 1
                  list.add("Vajpayee")    // 2

                  //    list.remove("Manmohan")
                  //    list.add("Vajpayee")

                  list[1] = "Modi"

                  for (element in list) {             // Using individual elements (Objects)
                    println(element)
                  }
                }
               </xmp>
               <hr>
               <p>listOf </p>
               <p>Inmutable, Fixed Size, Read ONLY</p>
               <p>mutableListOf, arrayListOf, ArrayList</p>
               <p>Mutable, READ and WRITE both, No Fixed Size</p>
            </div>
            <div id="map" class="tab-pane fade">
               <h3>Map</h3>
               <xmp>
                // Map Tutorial: Key-Value pair
                //    var myMap = HashMap<Int, String>()      // Mutable, READ and WRITE both, No Fixed Size
                //    var myMap = mutableMapOf<Int, String>() // Mutable, READ and WRITE both, No Fixed Size
                var myMap = hashMapOf<Int, String>()      // Mutable, READ and WRITE both, No Fixed Size

                myMap.put(4, "Yogi")
                myMap.put(43, "Manmohan")
                myMap.put(7, "Vajpayee")

                myMap.put(43, "Modi")

                for (key in myMap.keys) {
                  println("Element at $key = ${myMap[key]}")  // myMap.get(key)
                }
               </xmp>
               <hr>
               <p>mapOf </p>
               <p>Inmutable, Fixed Size, Read ONLY</p>
               <p></p>
               <p>HashMap, mutableMapOf, hashMapOf</p>
               <p>Mutable, READ and WRITE both, No Fixed Size</p>
            </div>
            <div id="set" class="tab-pane fade">
               <h3>Set</h3>
               <xmp>
                fun main(args: Array<String>) {

                  // "Set" contains unique elements
                  // "HashSet" also contains unique elements but sequence is not guaranteed in output

                  var mySet = mutableSetOf<Int>( 2, 54, 3, 1, 0, 9, 9, 9, 8)  // Mutable Set, READ and WRITE both
                  //    var mySet = hashSetOf<Int>( 2, 54, 3, 1, 0, 9, 9, 9, 8)     // Mutable Set, READ and WRITE both

                  mySet.remove(54)
                  mySet.add(100)

                  for (element in mySet) {
                    println(element)
                  }
                }
               </xmp>
               <hr>
               <p>setOf -> contains unique elements</p>
               <p>Inmutable, Fixed Size, Read ONLY</p>
               <p></p>
               <p>Set -> contains unique elements</p>
               <p>HashSet -> also contains unique elements but sequence is not guaranteed in output</p>
               <p>Mutable, READ and WRITE both, No Fixed Size</p>
            </div>
          </div>
      </div>
   </body>
</html>