Video: Dab tsi yog daim ntawv ntiav thiab sib sib zog nqus hauv Java?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hauv daim ntawv loj , tsuas yog teb ntawm cov ntaub ntawv tseem ceeb hom yog luam thaum cov khoom siv tsis yog luam . Daim ntawv sib sib zog nqus koom nrog luam ntawm cov ntaub ntawv keeb kwm yav dhau los nrog rau objet cov ntaub ntawv siv.
Kuj kom paub yog, dab tsi yog qhov ntiav thiab sib sib zog nqus luam?
A daim ntawv loj tsim ib qho khoom sib xyaw tshiab thiab tom qab ntawd (txog qhov ua tau) ntxig cov ntawv xa mus rau hauv nws rau cov khoom pom hauv thawj. A daim ntawv sib sib zog nqus constructs ib tug tshiab compound khoom thiab ces, recursively, inserts cov ntawv luam rau hauv nws ntawm cov khoom pom nyob rau hauv thawj.
Dab tsi yog qhov ntiav thiab sib sib zog nqus cloning hauv Java? Txhua yam kev hloov pauv tau ua rau cloned cov khoom yuav tsis raug cuam tshuam rau hauv cov khoom qub lossis rov ua dua. Default version ntawm clone txoj kev tsim cov daim ntawv loj ntawm ib yam khoom. Daim ntawv loj yog qhov zoo dua yog tias ib qho khoom tsuas muaj qhov chaw qub. Daim ntawv sib sib zog nqus zoo dua yog tias ib yam khoom muaj kev xa mus rau lwm yam khoom ua teb.
Tsis tas li ntawd, dab tsi yog daim ntawv ntiav hauv Java?
A daim ntawv loj yog a luam ntawm tus taw tes taw qhia rau cov khoom, whereas tob luam yog a luam ntawm qhov khoom nws tus kheej. Hauv Java , cov khoom khaws cia rau hauv keeb kwm yav dhau, qhov koj ib txwm cuam tshuam nrog thaum cuam tshuam nrog cov khoom yog cov taw qhia. Cov npe sib txawv taw tes rau qhov chaw nco ntawm qhov khoom.
Dab tsi yog qhov sib sib zog nqus luam hauv cloning?
Deep Copy . Cov daim ntawv sib sib zog nqus ntawm ib yam khoom yuav muaj qhov tseeb luam ntawm tag nrho cov teb ntawm qhov khoom zoo li tus ntiav luam , tab sis tsis zoo li salllow luam Yog hais tias qhov khoom muaj ib qho kev siv rau cov khoom raws li cov teb, ces ib tug replica ntawm cov khoom yog tsim los ntawm kev hu clone txoj kev.
Pom zoo:
Dab tsi yog thaj chaw ntiav ntiav?
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Puas yog cov kab pheeb ces kaum ib txwm sib sib zog nqus hauv ib qho parallelogram?
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Dab tsi parallelograms muaj kab pheeb ces kaum uas sib sib zog nqus?
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