Video: Kev siv lo lus tseem ceeb zoo li cas hauv Java nrog piv txwv?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Cov static lo lus tseem ceeb hauv Java yog siv feem ntau yog rau kev tswj kev nco. Nws yog siv nrog sib txawv, txoj kev, blocks thiab nested chav kawm. Nws yog ib lo lus tseem ceeb uas yog siv los qhia tib qhov sib txawv los yog txoj kev ntawm ib chav kawm. Qhov no yog siv rau qhov sib txawv tsis tu ncua lossis ib txoj hauv kev uas zoo ib yam rau txhua qhov piv txwv ntawm chav kawm.
Kuj kom paub yog, lo lus tseem ceeb zoo li cas nrog piv txwv?
Thaum ib txoj kev tshaj tawm nrog static lo lus tseem ceeb , nws yog lub npe hu ua zoo li qub txoj kev. Feem ntau piv txwv ntawm a zoo li qub method is main() method. Raws li tau hais los saum no, Ib qho zoo li qub cov tswv cuab tuaj yeem nkag mus tau ua ntej txhua yam khoom ntawm nws cov chav kawm raug tsim, thiab tsis siv rau ib qho khoom. Lawv tsuas tuaj yeem nkag ncaj qha zoo li qub cov ntaub ntawv.
Tsis tas li, peb tuaj yeem siv lo lus tseem ceeb zoo li qub nrog chav kawm hauv Java? Lo lus tseem ceeb tuaj yeem ua siv nrog chav kawm , variable, method and block. Static cov tswv cuab koom nrog chav kawm es tsis yog ib qho piv txwv tshwj xeeb, qhov no txhais tau tias yog koj ua tus tswv cuab zoo li qub , koj ua tau nkag mus rau nws yam tsis muaj khoom.
Kuj nug, lub ntsiab lus ntawm static hauv Java yog dab tsi?
Teb. Cov zoo li qub lo lus tseem ceeb qhia tias tus tswv cuab sib txawv, lossis txoj hauv kev, tuaj yeem nkag mus yam tsis tas yuav tsum muaj kev cuam tshuam ntawm chav kawm uas nws koom. Hauv cov ntsiab lus yooj yim, nws txhais tau tias uas koj tuaj yeem hu rau ib txoj kev, txawm tias koj tsis tau tsim cov khoom uas nws muaj!
Dab tsi yog kev siv static?
Hauv Java, zoo li qub lo lus tseem ceeb yog siv los tswj kev nco. Nws tuaj yeem siv nrog kev sib txawv, txoj hauv kev, thaiv thiab cov chav kawm nested. Nws yog ib lo lus tseem ceeb uas yog siv los qhia tib qhov sib txawv los yog txoj kev ntawm ib chav kawm. Hauv paus, zoo li qub yog siv rau qhov sib txawv tsis tu ncua lossis ib txoj hauv kev uas zoo ib yam rau txhua qhov piv txwv ntawm chav kawm.
Pom zoo:
Dab tsi ntawm cov hauv qab no yog qhov zoo ntawm kev siv cov khoom siv pom kev hauv kev hais lus?
Qhov txiaj ntsig tseem ceeb ntawm kev siv cov khoom siv pom hauv koj cov lus hais yog tias lawv ua kom cov neeg tuaj saib muaj kev txaus siab, hloov kev mloog ntawm tus neeg hais lus, thiab ua rau tus neeg hais lus muaj kev ntseeg siab ntau dua hauv kev nthuav qhia tag nrho
Lub tsev Roman tseem ceeb thiab zoo li cas suav nrog tag nrho cov hauv qab no nta lub thoob khib nyiab hauv pliaj vaults thiab lub hauv paus dome hla ib chav tsev yim sab?
Lub Basilica ntawm Constantine suav nrog cov thawv ntim khoom, lub puab tsaig vaults, thiab lub hauv paus dome hla ib chav yim sab. Roman dub thiab dawb mosaics feem ntau tshwm sim ntawm phab ntsa ntawm tsev
Dab tsi yog qhov tseem ceeb khaws cia lub rooj hauv Oracle nrog piv txwv?
Lub rooj tseem ceeb khaws cia yog lub hauv paus rooj nrog ib-rau-ib kab kev sib raug zoo nrog cov kab hauv kev pom, ntawm tus yuam sij tseem ceeb lossis tus yuam sij tshwj xeeb. Hauv qhov piv txwv saum toj no, lub rooj tsheb yog lub rooj tseem ceeb
Dab tsi yog qhov sib txawv tseem ceeb ntawm Amazon EBS thim rov qab thiab piv txwv khw Rov qab piv txwv?
Dab tsi yog qhov sib txawv tseem ceeb ntawm Amazon EBS-txhawb thiab qhov piv txwv-khoom txhawb nqa? Amazon EBS-rov qab piv txwv tuaj yeem nres thiab rov pib dua. Instance-store backed instances tuaj yeem nres thiab rov pib dua. Nws pib scaling yuav tsum siv Amazon EBS-rov qab piv txwv
Kev siv lo lus tseem ceeb kawg hauv Java nrog piv txwv yog dab tsi?
Java Final lo lus piv txwv. Lo lus tseem ceeb kawg hauv Java yog tus hloov kho siv los txwv tus neeg siv los ntawm kev ua cov cai tsis xav tau lossis tiv thaiv los ntawm tus lej lossis tus nqi los ntawm kev hloov pauv. Nws tuaj yeem siv lo lus tseem ceeb no hauv 3 lub ntsiab lus