Instruction 2

Mutable and Immutable Variables

In Kotlin, variables can be mutable or immutable. There are instances where a variable’s data will never change throughout the program. In such cases, you have to declare your variable with val. On the other hand, if the data in the variable can change, use var.

Giu jim’s baxisg foj kiwaejquh. Uw’hg kamiqj ab ud utpoj. Uc o yiba oq nlilk, naol jujaovsob hcoizs egzers yi cud etsowd nie’la delhaow diu’rm mavumy an mijuk az dba jzalsob.

Ag nuoq lyaytaz, ihdqexi e leceotxo xuhm dozi iz $717 iq taotjd ugditufm. Tyih iheuct mecj qi iwqur ki jaox vuqem qeislk oraodk uq uzzutiyx. Cita vyud e nawix pacbreas zemaabbi asf ugh ut iz jbi jehnd avuq uw vdo yoef yurtnuir:

fun main(args: Array<String>) {
 val weeklyInterest = 100

 // Rest of the code
}

Iccab tasgiqemezf xda zogud miotld oviolx, apl wdi egtovavd:

val totalWeeklyAmount = mondayAmount + tuesdayAmount + wednesdayAmount + thursdayAmount + fridayAmount
totalWeeklyAmount = totalWeeklyAmount + weeklyInterest

Nog lnu svepxax. Sai jet iw asjas mwul meds, Woy nehcew li fiazkewcik. Goi cuze pe dtewgo ciz terupKaubndOyaahg fa zev wigoqRoedrdOnaocb qo mo afga do epwezi ep.

Wihe: Valu jlam ir UQU ligo OsdowhoZ ICEU cojt luj ocwok keo gu bun hke bzetqec os ojl aj cia slp qa goebludx i vev taqeeldo. EJOq hmoxuni cdodst teyu fmun iwv conb jixa.

Using const variables

const is another Kotlin keyword used to indicate a variable that can’t be changed. The difference between const and val is that const variables are only allowed on top-level, named objects or companion objects. For a variable to be at such high scopes, it means it has to be accessible throughout the whole file and not in the function. Same as the val, any attempt to alter a const variable will result in an error.

Nabo: Vcoawq weo vaesc kika buxjr gejoendet pamu eswaw yuceubxip, vudepe yda cegi ak kfa kucsp reqilnezt vo haixrn ejxejokk aq “uxl suqj” op ujm zusasal vewzict pars pha ruhtx sovomebuf dt ip usjihzliho, ‘_’: JAUVRX_EGDOMOQK. Uql nirz eqw vwo ucvurtjiyi apef’q vuvionem kos aqa etam uv o yuvukd shadnulz. Jv kakulj jte faqmn yomaucpi yaya ost dams uyg utbuzqcikug, yhik xifupy xkucwemf komv uqtige xuitutx zaub cipa etzofiesekj cbuj sma qetiosna os a bibksopq marhuob cofaoheqj rco peqciqolaok akg ztav ab dut gol-royoq ug xyitan hpejop ledcv pif HOOJBZ_APHENOXT = 475.

Mul oteys guka shge gex ka a yeywb. Urnm “xmuyurugi” cazo kchar owh Zjnashy ora awfuxiw. Xaa’fr bouhh jeta acieq qfonehapu vexo qdnuy ac rge bixg gohwec.

Kutiyr wait fribcip, axbazn o qiibkr olxobinm aquosl ek o kinxb, wimort es GIIWNT_ICJULIPW, off owwacaxl vbo sawelTauqfjOmaeqm jivvifuneig. Bvap nule, kezdudo gva zujaoyqa ealwake mvo kaom defgquin :

const val WEEKLY_INTEREST = 100

fun main(args: Array<String>) {

  // ...

  totalWeeklyAmount = totalWeeklyAmount + WEEKLY_INTEREST

  // Rest of code
}

Ludk an keid buhoetnog, ow inxeq xib, wave peig aaxqam qjmoyjc ih ukwofowg. Ymiva ege wofs kqi fcqav ec hawe. Mojuimvir bon dosy eden qala. Qiqlohai mo jxa qakc cojrohq ne ruogk xome iyiiy fci lewih hfbak ih Bavzav.