Cov txheej txheem:
Video: Dab tsi yog qhov interface hauv Kotlin?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Kotlin - Interface . Hauv Kotlin , cov interface ua haujlwm zoo ib yam li Java 8, uas txhais tau hais tias lawv tuaj yeem muaj txoj hauv kev ua raws li kev tshaj tawm txog kev paub daws teeb meem. Ib interface tuaj yeem siv los ntawm ib chav kawm txhawm rau siv nws txoj haujlwm tau hais tseg.
Raws li, qhov txawv ntawm chav kawm abstract thiab interfaces yog dab tsi?
Main txawv yog txoj kev ntawm ib Java interface yog implicitly abstract thiab tsis muaj peev xwm ua tau. Ib chav kawm abstract tuaj yeem muaj cov hloov pauv tsis kawg. Cov tswv cuab ntawm ib Java interface yog pej xeem los ntawm lub neej ntawd. Ib Java chav kawm abstract tuaj yeem muaj cov khoom qab zib li niaj zaus ntawm chav kawm cov tswv cuab zoo li ntiag tug, tiv thaiv, thiab lwm yam..
Ib yam li ntawd, vim li cas peb thiaj siv interface dhau chav kawm paub daws teeb meem? Lub ntsiab zoo ntawm interface dhau ntawm chav kawm abstract yog kom kov yeej qhov tshwm sim ntawm cov teeb meem pob zeb diamond thiab ua tiav ntau yam qub txeeg qub teg. Hauv java tsis muaj kev daws teeb meem rau pob zeb diamond teeb meem siv cov chav kawm . Vim li no ntau yam qub txeeg qub teg yog thaiv siv cov chav kawm hauv java.
Ntawm no, qhov twg peb siv interface hauv Android?
Kev siv ntawm Interfaces hauv android Development
- Nws yog ib qho kev sau ntawm qhov tsis tu ncua, txoj hauv kev (kev paub daws teeb, zoo li qub thiab lub neej ntawd) thiab hom nested.
- Qhov txawv ntawm Chav Kawm.
- Lub interface lo lus tseem ceeb yog siv los tshaj tawm lub interface.
- Ib chav kawm siv cov ntsiab lus tseem ceeb los siv lub interface.
- Chav kawm siv Interface ua haujlwm.
Peb puas tuaj yeem tshaj tawm cov khoom hauv interface?
Interfaces yog cov ntawv cog lus kom ua tiav los ntawm kev siv cov chav kawm. Li no lawv ua tau muaj cov txheej txheem pej xeem, khoom thiab cov xwm txheej (indexers raug tso cai ib yam nkaus). Koj ua tau Txawm li cas los xij, muaj qhov sib txawv hauv cov chav kawm Base. Cov khoom hauv Interfaces - Yog, txij li lawv yog khub txoj hauv qab lub hood.
Pom zoo:
Dab tsi yog qhov zoo ntawm SCSI interface dhau ntawm IDE interface?
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Dab tsi yog sparse kem Dab tsi yog qhov zoo thiab qhov tsis zoo?
Koj poob 4 bytes tsis yog ib zaug ib kab; tab sis rau txhua lub cell hauv kab uas tsis yog null. Qhov zoo ntawm SPARSE kem yog: Qhov tsis zoo ntawm SPARSE kem yog: SPARSE kem tsis tuaj yeem siv rau ntawm cov ntawv, ntext, duab, timestamp, geometry, geography lossis cov neeg siv cov ntaub ntawv teev tseg
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