Peb puas tuaj yeem import interface hauv Java?
Peb puas tuaj yeem import interface hauv Java?

Video: Peb puas tuaj yeem import interface hauv Java?

Video: Peb puas tuaj yeem import interface hauv Java?
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Siv ntau qhov interface

Yog hais tias cov interfaces tsis nyob rau hauv tib pob khoom raws li cov chav kawm siv, koj yuav kuj yuav tsum tau ntshuam cov interfaces. Java interfaces yog imported siv cov ntshuam kev qhia ib yam li Java chav kawm. Piv txwv li: As koj ua tau saib, cwb interface muaj ib txoj kev.

Hais txog qhov no, cov interfaces ua haujlwm li cas hauv Java?

Java siv Interface los siv ntau yam qub txeeg qub teg. A Java chav kawm ua tau siv ntau yam Java Interfaces . Txhua txoj hauv kev interface yog implicitly pej xeem thiab abstract. Yuav siv ib interface hauv koj chav kawm, ntxiv cov lo lus tseem ceeb "ua" tom qab koj lub npe hauv chav kawm ua raws li interface npe.

Tsis tas li ntawd, dab tsi yog txhais los ntawm interface hauv Java? Ib interface hauv java yog ib daim qauv ntawm ib chav kawm. Nws muaj static constants thiab abstract txoj kev. Cov interface hauv Java yog ib tug mechanism ua kom tiav abstraction. Tsuas muaj txoj hauv kev paub daws teeb meem xwb Java interface , tsis siv lub cev. Nws yog siv los ua kom tiav abstraction thiab ntau yam qub txeeg qub teg hauv Java.

Tsis tas li ntawd, vim li cas cov interfaces siv hauv Java?

Nws yog siv kom ua tiav tag nrho abstraction. Txij li thaum java ua tsis txhawb ntau qhov qub txeeg qub teg nyob rau hauv cov chav kawm, tab sis los ntawm kev siv interface nws tuaj yeem ua tiav ntau yam qub txeeg qub teg. Nws kuj yog siv mus cuag xoob coupling.

Lub interface puas tuaj yeem txuas ntau dua ib qho interface hauv Java?

Ib interface tsis tuaj yeem muaj qhov piv txwv. Tsuas teb xwb ua tau tshwm nyob rau hauv ib interface yuav tsum tau tshaj tawm ob qho tib si zoo li qub thiab qhov kawg. Ib interface tsis yog txuas ntxiv los ntawm chav kawm; nws yog siv los ntawm ib chav kawm. Ib interface tuaj yeem txuas ntau lub interface.

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