Java cov lus pom zoo yog cov npe enum yog tag nrho cov ntawv loj, uas tam sim ntawd ua rau muaj teeb meem yog tias koj xav serialize enum hauv lwm daim ntawv. Tab sis thaum koj serialize cov enum qhov tseem ceeb, koj xav siv tus lej qis ntawm "sab laug", "sab saum toj", "txoj cai", thiab "hauv qab". Tsis muaj teeb meem-koj tuaj yeem hla sab.
Yuav tsum yog tus ntawv loj lossis tus lej qis?
Vim lawv yog cov tsis tu ncua, cov npe ntawm hom enum cov teb yog nyob rau hauv cov tsiaj ntawv loj. Koj yuav tsum siv hom enum txhua lub sijhawm koj xav tau los sawv cev rau cov txheej txheem ruaj khov.
Yuav tsum yog ib txwm yog tus ntawv loj?
Enums yog hom thiab lub npe enum yuav tsum pib nrog lub peev. Enum cov tswv cuab yog qhov tsis tu ncua thiab lawv cov ntawv yuav tsum yog tag nrho cov ntawv sau. Yog hais tias lawv yog lawv tus kheej chav kawm pib nrog cov ntaub ntawv loj, yog tias lawv yog cov tswv cuab tus lej qis.
Puas yog enum case sensitive?
Enum constants yog case sensitive.
Yuav tsum enums ua tus loj C?
Tsuas yog yam uas koj yuav tsum ua tag nrho lub kaus mom zoo li qhov tsis tu ncua / qhov kawg hloov pauv. Thaum koj muaj qhov sib txawv hauv zos koj yuav tsum siv rooj plaub ntxhuav. Cov npe ntawm cov npe sau npe (tseem hu ua enums) feem ntau yuav tsum ua raws li cov cai ntawm hom npe (PascalCasing, thiab lwm yam).
