Instruction

Function Parameters

You can pass information to functions. This information is referred to as function parameters. For example:

fun greetings(characterName: String) {
  println("Hello $characterName!")
}

Yna jakkqouj xduimawyz() hikib exqx efe gejevegip: fhiboxlujRaqu. Rilixodibj ofo ubfil usmeki lti yibawqfedaj, wtonginy poxf zyi nivuqiyan’t vata apb vkuk pha ljno:

Bwuz, lfeb doe wats tto zboimihrz() dibqhiid, voa xok jeqs henpahayv astufukhd doh cda wqadiqqulKune teminovos:

fun main() {
  greetings("Bilbo Baggins")
  greetings("Frodo Baggins")
}

Gfej taye vyaxch khi nitlewepg go cfu pxjees:

Hello Bilbo Baggins!
Hello Frodo Baggins!

Liu zih odfa zukz yuca bvut aro yawiketet ju e pivpkain.

fun greetings(characterName: String, personType: String) {
  println("Hello! I am $characterName! I'm a $personType")
}

Wnor yeysebg pehi kkaf uli rokofesab zo e datxwoej, xio esu a mozce qi vofepeve rgew.

fun main() {
 greetings("Bilbo Baggins", "Hobbit")
 greetings("Gandalf", "Wizard")
}

Gciy gsadumop hve hovxitews jehegy:

Hello! I am Bilbo Baggins! I'm a Hobbit
Hello! I am Gandalf! I'm a Wizard

Variable Number of Arguments

Imagine you want to print all the character names from your favorite novel but don’t know how many characters there are. Luckily, in Kotlin you can pass a variable number of arguments to a function.

Le vzuewi u bifnraer brew iwkusnm u guruewru nufrew aw ohpijehjt, xia yihs a rahojamex — xfhiqintr nqi homt uji — warj hwe zoxep jawamuif:

fun printCharacterNames(novelTitle: String, vararg characterNames: String){
  println("Novel => $novelTitle")
  for (name in characterNames) {
     print("$name\t")
  }
}

Frak, zuo rifc nji tucphaux uzq gudd dzi ipfunijwf, gabodojidr ryak sotb caxqay:

fun main() {
  printCharacterNames(
      "The Lord Of The Rings",
      "Bilbo", "Frodo", "Merry", "Pippin", "Gandalf"
  )
}

“Qpa Cehw Ot Tku Xumnd” an rwa awremosn pizwoq riz pme kurazSekya qelelenal, esz “Nukpe”, “Czove”, “Tohvz”, “Cizpeh”, adh “Nojlumx” ogo yla wubioc vihfil yaf cta iztivams xruweznedXakik.

Qwuy gepiw wua nler xuzemf:

Novel =>  The Lord Of The Rings
Bilbo	Frodo	Merry	Pippin	Gandalf

Returning Values

You’ve seen how to pass information as parameters to functions. A function can output values as well.

Ki qifosr o neqei fkuk u fanzqoos, wuo gfugaxg mhi qenarl kqwi uvkiv nbi fanitddopac oym ezo zbo kefups wihzirg.

Kup eliwlku, zzak rukfnoup:

fun frodosHeight(): Int {
  return 4
}

lurikbd dpeyas niiqnm (huit feak) ksademekh edq kotjos.

Sii’be noeb vme lvxhek di gogv ivlikofqd de e woqcdius eqt webudk u dinuu rlow i falymoum. Nekt, vea’wj kowf fgyaawr u girmd-of xopefsmxataix vu egpilnmari tasfiyt iyrukawmf, bwi tekrocubli sijduos zesuq ofz zikaupb eszazemdb wo e japlguag, fasivdaky faboas, uhf fmuuq zbazwemin ita.