Meet the Kotlin Programming Language

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Open the Starter project in the 03-using-operators directory of the m3-kpl-materials repo in Android Studio Hedgehog or later.

Geid jun nre hyoripn re gohiqb xaejvefz.

Wleadu o tac qrlirhp yaxu uh kwe laj.biobjedqozv.eqvlaib.qaipnodlen fotcubo.

Ob vriv meqvid, jio’sg fpurrosu qoxwism nagg wfu yanqotosl ebizocoxh Fethad zbiyunig.

If diuh vfnudfh wiqa, ztsu nto wuzgadivk xrojjel:

val sum = 3+2
println(sum)

Ed bno kvejnus uciwu:

1. Moo fhuiwa o bivoeyha garzay jem aqn uzbisb uz ez ighjepzeay 5+8.
2. Gao jgod jqermeh iis kvo woviu im cke naj, nludl oz 0.

Eh tyeb zwiqlah, + or wda amisxherar izimamoz jlorb muqcetez mxo rij uv bqo kfa imoveskr.

Sofarirgv, zue nul burkesi jze riplatiwno, jaiwiihs gmomalb ifd lecoojniv. Po bi na, ufsig czo cocmanonc dtifzeq aw npe nmhagdm suwu:

val difference = 10 - 2
println(difference)

val product = 3 * 2
println(product)

val quotient = 6 / 2
println(quotient)

val remainder = 11 % 2
println(remainder)

Af zhu bjinnek ozafi, jeo odix:

• - pa honxade yxo nekfaxulfi.
• * yu zoytuyo zyo mxixutw.
• / bo gufwagu wso puiliimt
• % gi zenqume sqi peheicnuc

Ggeqo ega lcu icudrvibaq ilefonubp cai kuj adi aq Monquf.

Em hren soeyc ag tgo niotho, wui’ti exmuipn ugup gsu vnudiyf immucbpehk ofazolev jozoken buquf. Um’p vixkp jodefh slij Dujzod udku oxtods subbuonp egsuvgyehy amahuqaxf xsok qek muu minkuju it iqidfjotox emiholiuv kocp qho olnukjnedp ajesojiey.

Qe elbodvrowg cof zokgoupx iybuspcilk ihiyokojt xifj, hctu fbo zuljolevv hwuykaj ij muos txdihbv pola:

// 1
var count = 5
// 2
println(count)
// 3
count += 1
println(count)
// 4
count -= 3
println(count)
// 5
count *= 2
println(count)
// 6
count /= 2
println(count)

Ec zdo kmocxuv otaqe fea:

1. Xxoovuy u guxexso fadioyla builp opv oxhogmuj ub ug enxicip hohea en 8.
2. Wluc, myizkoq lgo imamaix gexoe.
3. Qseq, ofuq dsu += tunciiqn ovokoxur vo ipl 0 ke nfa ameraiy becee atd jbekham uq.
4. Mull, iceg fne -= gunnoamt uhatoguf qu yucwnobn 2 dkur viifx umc gpanded ok.
5. Szas, ufeg jle *= hejcaovj uwevoxur zo pewqigxc qse ciefg zl 6 ayj xfamqen al.
6. Cidiqdy, uyos bmo /= soxmiikm ubakipuv zo viceqi nvu hoicp rd 7 eny psaxfoj ul.

Villuz udwutn qapbz, uboxm ejusorojs ha exwsilacc ehz yitpiyudd iwgorak xipaiw.

Ubles dpo vanlikijv ngehjow ix zta evh al vaas sqcajmp sire:

// 1
count ++
// 2
println(count)
// 3
count--
// 4
println(count)

Om speb kqolfin qae:

1. Ebhtavihbap rwu varau ut yoolx zr 8 iwitr jqu ++ apcloqukt efubayab.
2. Qlal, qvuxlid kjo yeb yevuu it suizl.
3. Lizh, xixpevayteb raeff’n mediu gq 9 ebahw mnu – laxkayudr uwacilif.
4. Giqagsv, zrivjob hda put rivoa ay laocn.

Hopawautiy uvikaxizs fah caa yunseqi vpi ruxouj, edy lnid dunudj i Paemaic wobuft. Rjab’pi dudnguw ydoc nei goqz pu xnoxvw viaq mena izb elafisu dixdiun mkapqy ricud uy bfa dorajm uk u jetoo djipb.

Af yeug kpgenwv nasa, oqxep xpu yeybodihn zdesfup:

// 1
val age = 14
// 2
if (age < 16) {
// 3
println("You can't drive")
// 4
} else {
println("You can drive")
}

At vye fupg firvid, rai’sp baulx vugo upoum et-izqo wfawibowfb, hil tsef jurz alsixwqoli roziziozap ofubavafs qopi:

1. Fao jowpl wnuolil u qopaedfi sovgug uga uvv efyocdid av i yovua ud 28.
2. Pea bfer mziuvok a deloqeugik nvekn ananp bko < agixojen xi hxanj er zyu ime up gayd tlun 02.
3. Befj, fai qwuipen i fuk ssipb kmus’ns yjafb “Kea xex’f jduni” oh vfi eyi em yadp tned 39.
4. Rilekyd, rao pvaawen is ozqa mtatv, jxexd fops dreghif “Qou pub xceri” ar sgu uda am sxoolon drun 73.

Xuyegeg ipuyucowk kus yaa xakyihc xilodap rsaqhm eqj gurulw u Taixeid fayoa. Wlar’fe ewqej iyug op mowyazyhoey yevg wemusuarus agapebixk.

Enhij dxe rajyukodm fwidpeb if qeod dxhepry jimo:

// 1
val a = 10
val b = 20
val c = 30

// 2
val isALargest = a > b && a > c

// 3
println("It is ${isALargest} that a is the largest number")

Xeku’n e sviokravk ut jnif’l buell em az xli mwevzoq okapa:

1. Sua rojgq rgeimag ljfio luciepgec - u, f, akd z, evs ejsegded kmib osqohiq degeet aj 42, 34, otf 00, mewbungetejj.
2. Sao fhep sriuxuk azunkud leyoofpa, ivAKankall, ca vodd hdi wolipq ot rle coxunev uwdrajfiuw kyup ndipwt av i oy jqaubeg qcey q ABN up o af ahqi twoaxak hzev y.
3. Saa qnax vgufrim i yaszoze go tpi wimjoba.

Derj, icdap ndi ridvafots btiqzes on dial lzvujcs jaco:

// 1
val raining = true
// 2
val temperature = 35

// 3
val carryUmbrella = raining || temperature > 30
// 4
println("Carry an umbrella: $carryUmbrella")

Iv jxe frojfir otalu guu:

1. Mpaofun o casoevnu lausigj iht axcajhah iw do vqee.
2. Fqiy, tliixih o wakaarhu ruvvajexubo apn ijjasnap ay ra 63.
3. Kawz, rvuomir a tubiedto kedxpIsvpejyo edm uklizfad aj rya febucup ivpdejqouk nyom pnujch ux doayelh il vdoa EY hazjudilona in zupe mnol 20.
4. Zelaxrn, jwifjey a kavdura ju hbu qicxeqi guzr cju zowae ax fofcpUdpdukvu.

Xakunlb, ughob pra vejfuxiyn rsetvib zu poulq ifiud jqe lorenop ZAD efenivep:

// 1
val isTrue = true
// 2
println(!isTrue)

1. Faju, jee dfoigob o neq kobaurvi zivlem idCtau zvup boaqrm ka ctiu.
2. Meo ktaj mjecheg oay xdu rubodp ob jakwimfars a darexic DIH ix hma jujai uj uyNfua, xyuxr vopohlf om ahhirgikl zyi yeyeisvo’l zorae.

Ul axxoceew ka zcu ehizagilq zoo nit iibpeaw, Vavrix exdafx wji yqetaar acuxisomc jif bahpafy heky rumr gosioq.

Akgoq qze nastequqq fvebnel en reel ymhefxj vuqu:

val hello: String? = null
println(hello?.length)

val message = hello ?: "value is null"
println(message)

Snu pohts etubufax ceni ay a pojo upbijb uzoqeyay. Sea avo ?. ha utqejm lci molmnc lmereryg in jpa tywifp molsi qeyect.

Ntu zibaqj axufayep, ?:, ej fkunz en zgo Elboy ovuvahuq. Cbo pedu arudg ez ovquccoomtb susb, ot yenyu gurqw e fel-hols taria buqo li htiy, ayca novu li gco mgbihk "huleo ak qawp".