Kotlin Vs Java
Kotlin yog ib cov lus kev kawm siab (tsim los ntawm JetBrains), sau rau hauv JVM thiab siv chav qiv Java thiab lwm yam cuab yeej. Rau lwm cov tes, Java yeej tseem INTERACTIONS with Kotlin Cheebtsam seamlessly. Tus thawj lub hom phiaj ntawm Kotlin kom pab tau rau txug tej yaam uas ua tau lub neej tiag tiag yog, ces nws tsawg tsim ntawm kos thiab ua kom zoo saib rau qhov Java uas twb muaj lawm developers. Nws tseem yog ib qho yooj yim kawm compared rau qhov lwm JVM raws li hom lus xws li Scala. Raws li Java muaj ib interoperability sib sib zog nqus uas muaj Kotlin, Java developers muaj ntau attracted kawm mus sim nws. Kotlin muaj ib qho chaw yug thiab ruaj khov ua lag ua luam qauv, ces nws yuav tsis yuav tsis tau txais abandoned near lawm yav tom ntej. Los ntawm ib tus tsim tawm foundations, Kotlin yog pheej heev thiab nws yuav muab ntau dua nyob rau hnub tom ntej. Li ntawd, peb yam xyuam xim twv tias tias Kotlin yuav tsum lwm loj tshaj plaws rau lub zej zos Java.
Dlaws teeb meem kev loj hlob Java
JetBrains cas tsis npaj siab yuav ua tej yam revolutionary Kotlin. Nws xav muab ib hom lus pab tau thaum uas solves cov teeb meem uas twb muaj lawm. Kotlin muaj nqe li nram no uas yuav pab daws tau los yog tsis txhob muaj teeb meem nyob rau hauv Java thiab ua tau zoo.
- Muab ib qho lus intuitive uas tau xav hais tias ntawm cov leb sau los ntawm developers thiab ua ntau cov chaw ua hauj lwm rau developers.
- Zoo productivity kom lub dag zog yuav tsum tau mus sau txoj. Piv txwv, ib 50 kab (approx.) chaws sau Java yuav txo tau kom 2/3 (approx.) hlua Kotlin.
- Tiv thaiv kom txhob muaj ntxiv thov pointer.
- Muab tej chaws ceev thaum muab tso ua ke.
- Txo cov kev kawm lub sij hawm rau developers muab ntaub ntawv thiab kev them nyiaj yug.
- Kotlin chaws syntax yog ib qho yooj yim to taub, kom muaj txoj kev ntsuam xyuas txoj yooj yim tshaj rau ib tug tshiab kaum.
- Runtime overhead los kuj tsis tshua muaj raws li lub tsev qiv ntawv txheem no me me thiab compact.
Apart from cov saum toj no loj zoo, Kotlin kuj muaj lwm cov kev txhawb zog zoo ib yam li cov cai yooj yim conversion ntawm Java thiab Kotlin ntau heev, ib qho yooj yim xws li IDE, daim ntawv qhia txog debugging, rov factoring thiab profiling thiab lwm yam. Li ntawd, nyob rau hauv tag nrho, Kotlin mas nws yeej yuav qhaws qhov ntsiab lus mob muag ntawm tus Java developers.
Hlub Kotlin nta
Qhov nta salient Kotlin yuav piav hauv qab no uas Java developers yuav nyiam siv.
Tsis xav paub ntau ntxiv thov pointer
Qhov no tej zaum qhov tseem ceeb tshaj plaws feature. Lub pointer Thov kos yog ib yam ntawm cov tshaj dreaded, unsolved tej teeb meem developers ntsej muag. Kotlin tus yam lawv tsis compile chaws uas assigns los yog rov thov. Pom cov nram qab no piv txwv.
val npe: Txoj hlua = thov // nws npe thov, tsis compile
Stephen getName() : Txoj hlua = thov // nws rov qab thov, tsis compile
Vim txhua txoj kev hu rau ib nullable yam uas ua tau ib tug pointer Thov kos, cov Kotlin compiler forces tus tsim tawm los siv tus neeg teb xov tooj Elvis thaum twg qhov kev hu no yog muab rau ib yam uas tsis yog-thov.
Lesser coding
Kotlin compiler yuav xav hais tias nkag siab rau ntawm qhov chaws uas sau los ntawm ib tug tsim tawm thiab tau tsim los sau qhov chaws ntxiv tsis zoo li nyob rau hauv Java. Java yuav tsum tau lub tsim tawm ntsees sau txhua yam uas kov tau ntau zaus thiab dag zog. Kotlin tej yam dag zog thiab lub sij hawm thiab pab txoj kev productivity. Piv txwv, Kotlin compiler yuav xav hais tias yam nyob rau hauv cov ntaub ntawv kuj tsis paub meej li no compiler-generated getters/setters/qhov sib npaug/hashCode. Rau lwm cov tes, tus Java compiler tsis xav hais tias ua ntau ntau thiab yuav tsum muaj tus tsim tawm ntsees sau txoj.
Yooj yim kawm hab siv cov Java developers
Vim Kotlin yog ib yam dabtsi revolutionary, tej software tsim tawm tau kawm thiab pib siv nws tshwj xeeb tshaj yog cov Java thiab Scala developers. Qhov tseem ceeb mas yog Kotlin yog nyob Java nyob rau hauv ntau txoj kev thiab feem siv lub tsev qiv ntawv Java, Piv txwv. Tseem, Kotlin yog inspired Scala thiab raws li muaj coob; nws zoo heev li Scala. Txoj cai yuav siv cov JVM thiab cov Javac, tus thawj Java compiler. Tus nkhaus kawm rau Java developers tsis ntseg thiab lawv tau cov ntaub ntawv Kotlin leverage thiab pib sai nrog coding.
Tau tshaj rov qab
Kotlin muaj rov qab compatibility rau Java versions 6 thiab 7. Nws tau hais tseg nyob rau hauv nws cov blog ntawd dhau tom ntej kuj pom ob peb qhia, yuav ceev tau txoj kev loj hlob workflow, txo cov tsev qiv ntawv runtime qhov luaj li cas thiab qhia ntau tooling. Kotlin yuav tsum plaug ib feature hu ua incremental muab tso ua ke rau hauv nws cov Gradle muaj plug-in. Qhov no yuav pab kom Kotlin compile thiab lawv muaj qhov hloov xwb tus thiab tsis tus tseem chaws lawm. Qhov no yuav pab txuag cov sij hawm ntau.
IDE interoperability
Kotlin muaj ntau heev ntawm kev txhawb kom mus pab tau txoj productivity. Nws yog interoperable heev nrog lub IDEs, li ntawd, refactoring, debugging, searching, chav tsev kuaj mas yooj yim heev ua.
Tswj ua thiab siv cov yam ntxwv hais los saum toj no yeej muaj nthuav, ces tus Java developers yuav tsum muab rau nws ib zaug thiab saj tsis tau txoj kev zoo nkauj ntawm Kotlin. tej zaum, tus tsim tawm Java yuav siv tau ib feem ntawm nws Java chaws rau hauv Kotlin thiab saib seb nws tej lub hom phiaj. Txawm txoj kev peb taug, Kotlin no mas nws yeej yuav muab koj lub tswv yim zoo.
Wb xaus
Lub xeev notwithstanding evolving, Kotlin twb zoo li ib tug uas yuav zoo productivity ho. Developers ntau yog zoo txog Kotlin enabling lawv mus cuag ib tug txhob nyob hauv lawv cov productivity. Ib sab laj rau website Hacker cov xov xwm uas hosts ib sab laj rau Kotlin reveals tias Kotlin solves ntau Java mob ntxiv tsis muaj tiag reinventing li cas coding yuav tau rov. Rau txoj kev sib tw tom ntej yog dab tsi? Los nrhiav kev txaus sab loj loj, nws yuav tsum tau impress npe li uas yog ib cov neeg siv Java loj loj thiab muaj tau hauj lwm zoo Java Google. Nws yuav muab nthuav los saib cas Kotlin mus txog cov kev pab thiab seb nws ntsib lub rau txoj kev sib tw tom ntej.
