Video: Dab tsi yog instantiation nyob rau hauv cov nqe lus ntawm OOP terminology?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hauv computer science, kev xav yog qhov realization ntawm ib yam khoom predefined. Hauv OOP ( object-oriented programming), chav kawm ntawm cov khoom yuav raug txhais. Cov txheej txheem no hu ua " kev xav "Qhov lub sij hawm " kev xav " kuj tseem siv rau hauv lwm qhov chaw ntawm computer science, xws li hauv kev tsim cov servers virtual.
Hais txog qhov no, txhais li cas los ntawm instantiation?
Rau sai sai yog tsim ib qho piv txwv los ntawm, piv txwv li, txhais ib qho kev hloov pauv ntawm cov khoom hauv chav kawm, muab nws lub npe, thiab nrhiav nws hauv qee qhov chaw lub cev. 1) Hauv cov phiaj xwm kev taw qhia, qee tus kws sau ntawv hais tias koj sai sai ib chav kawm los tsim ib qho khoom, ib qho piv txwv ntawm chav kawm.
Ib yam li ntawd, koj yuav ua li cas rau cov chav kawm? Rau sai sai yog tsim ib yam khoom los ntawm a chav kawm siv lo lus tseem ceeb tshiab. Los ntawm ib qho chav kawm peb tuaj yeem tsim ntau yam. A chav kawm muaj cov npe, hloov pauv thiab cov txheej txheem siv. Cov variables thiab cov txheej txheem teej tug mus rau a chav kawm hu ua member variables thiab member method.
Tsuas yog li ntawd, nws txhais li cas rau instantiate ib yam khoom?
Rau sai sai yog tsim ib qho piv txwv ntawm ib khoom hauv ib khoom -oriented programming (OOP) lus. Ib khoom tam sim no yog muab ib lub npe thiab tsim nyob rau hauv lub cim xeeb los yog nyob rau hauv disk siv tus qauv piav nyob rau hauv ib chav kawm ntawv tshaj tawm.
Dab tsi yog instantiation hauv Java?
Instantiate hauv Java txhais tau tias hu ib tug constructor ntawm ib chav kawm uas tsim ib qho piv txwv los yog khoom, ntawm hom ntawm chav kawm. Kev xav faib lub cim xeeb thawj zaug rau qhov khoom thiab xa rov qab siv.
Pom zoo:
Dab tsi yog zaj lus qhia nyob rau hauv Lus dab neeg ntawm Sleepy Hollow?
Sau: Washington Irving
Yuav ua li cas yog ib tug txheej txheem nyob rau hauv lub operating system dab tsi yog ib tug xov nyob rau hauv lub operating system?
Ib tug txheej txheem, nyob rau hauv cov nqe lus yooj yim tshaj, yog ib tug executingprogram. Ib tug los yog ntau tshaj threads khiav nyob rau hauv cov ntsiab lus ntawm cov txheej txheem. Ib tug xov yog ib qho tseem ceeb chav tsev uas theoperating system faib lub sij hawm processor. Lub threadpool feem ntau yog siv los txo tus naj npawb ntawm cov ntaub ntawv thov thiab muab kev tswj hwm ntawm cov neeg ua haujlwm threads
Yuav ua li cas rau txim nyob rau hauv Is Nrias teb rau nyiag computer cov ntaub ntawv cov cuab tam los yog tej software qhov chaw code los ntawm ib tug neeg lub koom haum los yog los ntawm lwm yam txhais tau tias?
Kev piav qhia: Kev rau txim hauv Is Nrias teb rau kev nyiag cov ntaub ntawv hauv computer, cov khoom muaj nqis lossis ib qho software cov cai los ntawm ib lub koom haum, ib tus neeg, lossis los ntawm lwm txoj kev yog raug kaw 3 xyoo thiab raug nplua ntawm Rs. 500,000
Dab tsi yog qhov sib txawv ntawm cov qauv siv nyob rau hauv cov ntaub ntawv ntawm cov khoom oriented qauv?
Cov qauv tseem ceeb ntawm cov qauv uas siv rau hauv cov khoom siv yog: Siv cov qauv qauv, Cov qauv qauv (zoo li qub) cov qauv, Cov qauv coj tus cwj pwm (dynamic) khoom qauv
Lub sij hawm nyob rau hauv ontology yog dab tsi yog hais txog cov lus piav qhia hierarchical thiab cov lus hais txog ib qho tshwj xeeb?
Lub schema yog ib lo lus ontology uas hais txog cov lus piav qhia hierarchical thiab cov lus hais txog ib lub npe. Ib lub npe sawv cev rau tag nrho lub tuam txhab lossis kev faib hauv ib lub tuam txhab. Ib tug cwj pwm yog ib tug yam ntxwv tshwj xeeb hais txog ib chav kawm, uas yog ib hom khoom