Vim li cas array hu ua derived data type?
Vim li cas array hu ua derived data type?

Video: Vim li cas array hu ua derived data type?

Video: Vim li cas array hu ua derived data type?
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Ib array yog a muab tau cov ntaub ntawv hom vim nws tsis tuaj yeem txhais tau ntawm nws tus kheej, nws yog ib qho kev sau los ntawm qhov yooj yim hom ntaub ntawv Feem ntau, xws li cov lej, ob npaug, ntab, booleans, thiab lwm yam. Hauv hom lus taw qhia koj tuaj yeem muaj koj tus kheej cov chav kawm uas tuaj yeem yog lub hauv paus ntawm ib qho array.

Cov neeg kuj nug, dab tsi yog lub ntsiab lus ntawm derived data type?

Tau txais cov ntaub ntawv hom yog kev sib sau ua ke ntawm qhov tseem ceeb hom ntaub ntawv . tus cwj pwm, integer, ntab, thiab void yog qhov tseem ceeb hom ntaub ntawv . Pointers, arrays, structures thiab unions yog muab tau cov ntaub ntawv hom . Cov cim yog siv rau cov cim.

Ib yam li ntawd, qhov array yog dab tsi? Ib qho kev npaj ntawm cov khoom, duab, lossis cov lej hauv kab thiab kab yog hu ua ib qho array . Arrays yog cov sawv cev muaj txiaj ntsig ntawm cov ntsiab lus sib npaug. Qhov no array muaj 4 kab thiab 3 kab. Nws tuaj yeem piav qhia tias yog 4 los ntawm 3 array . Thaum cov pab pawg sib npaug tau teem rau hauv cov kab sib npaug, ib array yog tsim.

Tsis tas li lo lus nug yog, dab tsi yog hom derived?

A chav kawm uas yog tsim raws li ib tug yav tas los uas twb muaj lawm chav kawm (ie, base chav kawm ). A muab cov chav kawm inherits tag nrho cov tswv cuab sib txawv thiab cov txheej txheem ntawm lub hauv paus chav kawm los ntawm qhov nws yog muab tau . Kuj hu ua a tau txais hom.

Dab tsi yog hom pib thiab muab tau los ntawm Java?

Keeb kwm cov ntaub ntawv hom yog cov ntaub ntawv dav dav thiab tseem ceeb hom uas peb muaj nyob rau hauv Java thiab cov no yog byte, luv, int, ntev, ntab, ob npaug, char, boolean. Muab los cov ntaub ntawv hom yog cov uas tau tsim los ntawm kev siv lwm cov ntaub ntawv hom Piv txwv li, arrays. Cov neeg siv cov ntaub ntawv teev tseg hom yog cov neeg siv / programmer nws tus kheej txhais.

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