Video: Dab tsi yog qhov tsis muaj dab tsi hauv Java?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
pej xeem txhais tau hais tias txoj kev pom thiab tuaj yeem raug hu los ntawm lwm yam khoom ntawm lwm hom. Lwm txoj kev xaiv yog tus kheej , tiv thaiv, pob thiab pob- tus kheej . Qhov no txhais tau hais tias koj tuaj yeem hu rau txoj kev zoo li qub yam tsis tau tsim anobject ntawm chav kawm. tsis muaj dab tsi txhais tau hais tias txoj kev tsis muaj nqi.
Ntawm no, dab tsi yog qhov tsis muaj nyob hauv Java?
tsis muaj dab tsi yog a Java lo lus tseem ceeb. Siv ntawm methoddeclaration thiab txhais kom meej meej tias txoj kev tsis rov qab txhua yam, txoj kev rov qab tsis muaj dab tsi.
Tsis tas li ntawd, txoj kev ntiag tug yog dab tsi? Cov txheej txheem uas yog tus kheej tuaj yeem hu tau los ntawm txoj kev nyob rau hauv tib chav kawm lossis hauv tib "module". Cov txheej txheem tsis nquag ua tus kheej ; feem ntau lawv raug tiv thaiv kom cov menyuam tuaj yeem hu rau lawv, lossis pej xeem kom lwm tus lej tuaj yeem hu rau lawv.
Tsis tas li ntawd, tus txheej txheem ntiag tug hauv Java yog dab tsi?
Private method in java txhais tau tias - koj tsis tuaj yeem accessor hu qhov ntawd txoj kev sab nraum chav kawm uas tus txoj kev belongs rau. Koj tuaj yeem nkag mus lossis hu rau a txoj kev ntiag tug nyob rau hauv cov chav kawm ntawv xwb.. tsis nyob rau hauv lwm chav kawm.
Private void yog dab tsi?
Muaj lwm cov npe-- tus kheej thiab tiv thaiv - uas txhais tau tias lwm yam; tus kheej , piv txwv li, xaiv ib txoj kev uas tsuas yog hu los ntawm hauv chav kawm uas nws tau tshaj tawm. Cov tsis muaj dab tsi lo lus tseem ceeb qhia tau hais tias novalue rov qab los ntawm txoj kev.
Pom zoo:
Dab tsi yog qhov uas tsis yog recursive qhovntsej thiaj tsis mob parser?
Kev kwv yees parsing yog ib daim ntawv tshwj xeeb ntawm recursive qhovntsej thiaj tsis mob parsing, qhov twg tsis muaj backtracking, yog li qhov no tuaj yeem kwv yees qhov kev tsim khoom siv los hloov cov hlua nkag. Tsis-recursive kwv yees parsing los yog rooj-tsav kuj hu ua LL(1) parser. Qhov parser no ua raws li qhov kev sib txuas ntawm sab laug (LMD)
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