Java class syntax yog dab tsi?
Java class syntax yog dab tsi?

Video: Java class syntax yog dab tsi?

Video: Java class syntax yog dab tsi?
Video: how to create database in mysql || sql tutorial || create database || use database || sql in short 2024, Kaum ib hlis
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Txoj hlua: "Nyob zoo, Ntiaj Teb" (ib ntu ntawm cov cim

Tsis tas li ntawd, chav kawm hauv Java yog dab tsi?

Cov chav kawm thiab Objects hauv Java . Cov chav kawm thiab Objects yog cov ntsiab lus tseem ceeb ntawm Object Oriented Programming uas tig mus ncig lub neej tiag tiag. Chav kawm . A chav kawm yog ib tug neeg siv daim ntawv qhia los yog tus qauv los ntawm cov khoom uas raug tsim. Nws sawv cev rau cov txheej txheem lossis cov txheej txheem uas muaj rau txhua yam khoom ntawm ib qho

Tsis tas li ntawd, chav kawm thiab khoom yog dab tsi? A chav kawm yog ib daim phiaj los yog cov qauv uas txhais cov kev sib txawv thiab cov txheej txheem (functions) uas muaj rau txhua tus khoom ntawm ib yam. Ib khoom yog ib qho piv txwv ntawm a chav kawm . Software khoom feem ntau siv los ua qauv hauv ntiaj teb tiag khoom koj pom hauv lub neej txhua hnub.

Tsis tas li ntawd, dab tsi yog chav kawm thiab khoom hauv Java nrog piv txwv?

Txhua yam hauv Java yog txuam nrog cov chav kawm thiab cov khoom, nrog rau nws cov cwj pwm thiab txoj hauv kev. Piv txwv li: nyob rau hauv lub neej tiag tiag, lub tsheb yog ib yam khoom. Lub tsheb muaj tus cwj pwm, xws li qhov hnyav thiab xim , thiab txoj kev, xws li tsav tsheb thiab nres. Chav kawm zoo li tus tsim khoom, lossis "blueprint" los tsim cov khoom.

Daim ntawv tshaj tawm hauv chav kawm yog dab tsi?

Cov Chav Kawm Tshaj Tawm . Cov kev tshaj tawm ntawm chav kawm tivthaiv tshaj tawm lub npe ntawm tus chav kawm nrog rau lwm yam cwj pwm xws li cov chav kawm superclass, thiab seb cov chav kawm yog pej xeem, zaum kawg, los yog abstract. Yam tsawg kawg nkaus, lub kev tshaj tawm ntawm chav kawm yuav tsum muaj cov chav kawm lo lus tseem ceeb thiab lub npe ntawm tus chav kawm uas koj txhais.

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