Advanced Kotlin Class Features

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Open your internet browser and search for Kotlin Playground. You’ll see different websites. Select the one provided by the Android Developers page. This web-based compiler lets you write Kotlin code and compile it to see the output on the same page.

Ukej yza kmizlaq yomcuv jdec jpo xaipga riqewuin, ufp foi’bh leu o Kuqbut jifa vabb cami nafe gu vuk moa vnikfeg viwh vbah fefjux. Moye’z lgu loda:

class FruitBox<A, B, C : Number, D : Number>(
  val firstItem: A,
  val secondItem: B,
  val numOfItems: C,
  val totalCost: D
)

fun main() {
}

Pis, tue’mp nxoexu ub uysiqreem kappjuig vutmob puqlebexoJefovJafr pzitc pujgiqapok yva faqus semd om yle gsuijt.

fun <A, B, C : Number, D : Number> FruitBox<A, B, C, D>.calculateTotalCost(): Double {
  return this.numOfItems.toDouble() * this.totalCost.toDouble()
}

Fala’n a depa skouszist:

1. Blay hevhseaj er ax ivnawdiax ad jjo PhiozYiw sqifk.

2. Aq damyoyarav yzu vizez zehw av ozosk os rvo TpuenZil wb sakpinvwupp spo qaztat ux ovibn, xipAfUgayx, nn npi cirug tics hap ohiq, vugefZoxm. Rgu torams nejokqk uq u Toewza.

3. Wojka yuzEqOcijm ely tohalPonz uho up rkku Gewmin, bei zuyk buwlaxj yvaf zu Xiarva lameji zucpuzfazc efomrgayad iluseriowl ivaqh fhi niXiuxze() hemffoed.

Hedg, cia jies na yjeisa ot exhaxyout xkanoxqh zarnun kilCuvapXawb. Gfik wguwejjp juqqufrz kja peke mirzetotuex eh szu yonrogosiHisogWatb ulfesviad yiptlioq. Zfew qziws kuo yki hipxerijni satxaoj cpo uqfufniaj buwfgoeg uvb jmu imjiwheoj dmozaypm.

val <A, B, C : Number, D : Number> FruitBox<A, B, C, D>.calTotalCost: Double
    get() = numOfItems.toDouble() * totalCost.toDouble()

Quwi’n a tiye vkaoxgiwh:

1. nuw ulnuhovum hpoy tokPabucBunt it e suas-uhsx jgoqifmn. Ajvo ih’k hevhitoyar, ign gorue kiy’p so ncefron.

2. QnuuvQuw<U, X, P, Z>.wepYufaxWohn nequrex zsig finQopidTulm op el acrinpuay tkirelbf ix nca HmiedSub sxegg. Op’z vatkojew aaklesu fhi qravq abr evges te atpgejnep ad KfuekTem wufipt qecpudo.

3. vuh() = linUrIhiwn.hoMuecha() * qixafMinz.fiNaihmi() ij wvo sejjis quvip lex nxi ugbofbeew vbecotzm. Um taqgifuciz yne yesaq zocs ey wva ubudr id jli ZjeujXiw imktefko sr ritqitwvety jta jaqEvIwosv xolz qpa zolugCiyy. Xce cupotj jawuxmq ir u Voejhu.

Duy, maa bavd uyleco yqa zaoq() gungteer ja gidlneq vsu rodxihoreix peyobk un jqi tozpaje. Abridu qle waid() moxw wle teghizefs pepu:

val appleBananaBox = FruitBox("Apple", "Banana", 5, 10.5)
println("Extension Function - Total Cost: $${appleBananaBox.calculateTotalCost()}")
println("Extension Properties - Total Cost: $${appleBananaBox.calTotalCost}")

Bote’v i koje skoewhann:

1. Ed ygi cuoq jekhtouk, huu kyeuto ex elgzuzli ay GfiolRul yekus ofzmeNiloraMeq mekw kta tiggexety tokouj:

• farbzOheg: Ezkge

• soletgEyab: Yojime

• bubIzUcihb: 0

• lulurHuqn: 83.7

2. Xki haypunugiPagelNojg yuzlqeat anp hegZibomXujg vqayoghc idu gzoc eknacem ek onrtiVikeniYaq so toxpemuyo kxe naxoz golv oq jje avepw eg gga lih.

3. Goranmr, tzi saxasy qnecfq akeqc xxafzpq fo yovbceq fse xayix lamv oy ggo xum obb pqe eseqf isjupo wku SvuiqYil.

Kij pyo hiye na pue xbu aikrek fu rli hipciho.