KOTLIN somo la 19: method na properties zinazotumika kwenye set

Set zinafanana sana na list ila kuna utofauti katika matumizi, kwanza seti hutumia mabano {}, pia set data zake ni unique yaani haziwezi kujirudia, pia data kwenye set zinakuwa katika aina moja ya data, huwezi kuchanganya namba na string.

Katika somo hili tutatumia string ya somo lililopita ili kufanyia mazoezi.

{'bongoclass', 'facebook', 'google', 'youtube', 'microsoft'}

Mfano

fun main() {

   val text1: Set<String> = setOf("bongoclass", "facebook", "google", "youtube", "microsoft")

   println(text1)

}

[bongoclass, facebook, google, youtube, microsoft]

Methods zinazotumika:

fun main() {

   val set1 = mutableSetOf("bongoclass", "facebook", "google", "youtube", "microsoft")

   set1.add("github")

   println("baadaya  add(): $set1")

   val additionalElements = setOf("apple", "orange", "banana")

   set1.addAll(additionalElements)

   println("Baada ya  addAll(): $set1")

   val elementToCheck = "google"

   println("Contains '$elementToCheck': ${set1.contains(elementToCheck)}")

   val elementToRemove = "microsoft"

   set1.remove(elementToRemove)

   println("baaday ya remove('$elementToRemove'): $set1")

   println("kufanya iteration kwa kutumia forEach():")

   set1.forEach { println(it) }

   set1.clear()

   println("baada ya  clear(): $set1")

}

Set operations

Hapa tunakwenda kufanya matendo ya set, hizi ni hesabu maalumu ambazo hutumiwa kwenye set data type. Matendo haya ni:-

- Union

- Intersection

- Subtraction

Union hii huhusika na kuunganisha set mbili ili kupata set moja.

fun main() {

   val set1: Set<String> = setOf("bongoclass", "facebook", "google", "youtube", "microsoft")

   val set2: Set<String> = setOf("Whatsapp", "Telegram", "Inst...