2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob hauv Java, kev sau npe yog qhov tseem ceeb uas pab cov neeg tsim tawm kom taug qab qhov yuam kev. Java yog hom lus programming uas los nrog kev nkag mus kom ze. Nws muab qhov Kev Nkag Siab API uas tau qhia hauv Java 1.4 version. Nws muab lub peev xwm los ntes cov ntaub ntawv teev cia.
Vim li cas peb thiaj li xav tau ntawv?
Muab cov ntaub ntawv tsim nyog - Kev txiav yog yog qhov tseem ceeb ntawm cov ntoouas yog siv rau ntau tus tib neeg xav tau xws li muab cov khoom siv, flooring ntoo, rooj tog zaum, roj rau kev lag luam thiab tsev, khoom siv ncaws pob thiab lwm yam khoom siv.
Puas yog kev txiav txim siab cuam tshuam rau kev ua haujlwm Java?
Java logging hnyav cuam tshuam rau kev ua haujlwm ntawm koj daim ntawv thov. Nws qhov kev nkag siab zoo uas ntau koj nkag, ntau koj ua cov ntaub ntawv IO uas ua rau koj daim ntawv thov qeeb. Yog vim li cas thiaj xaiv java logging theem rau txhua lo lus tseem ceeb heev.
Kev txiav txim siab txo qis kev ua haujlwm?
Puas kev kaw tseg txo qis kev ua haujlwm ntawm daim ntawv thov? Yes.
Puas GC logging cuam tshuam kev ua haujlwm?
1 Teb. Yes it do. Thaum koj pom koj tus kheej nyob rau hauv ib qho chaw uas koj yuav tsum tau qhib JVM thiab / lossis GC, qhov ntawd txhais tau tias koj lub cev muaj teeb meem tuav lub nra.
Pom zoo:
Vim li cas kev sib koom ua ke tseem ceeb hauv kev kawm lus?
Vim li cas kev sib koom ua ke tseem ceeb? Collocations yog ib qho tseem ceeb vim lawv ua rau koj cov lus zoo. Yog tias koj paub qhov sib sau ua ke, koj cov lus Askiv yuav yog cov lus qhia ntau dua, uas yog, zoo ib yam li nws hais los ntawm cov neeg hais lus.
Vim li cas txoj kev tseem ceeb tseem ceeb rau kev tswj xyuas qhov project?
txoj kev tseem ceeb tso cai rau pab pawg txheeb xyuas cov haujlwm tseem ceeb tshaj plaws hauv qhov project. … Qhov no muab kev nkag siab ntau dua rau koj qhov project ncua sij hawm thiab kev sib raug zoo ntawm cov haujlwm, ua rau koj nkag siab ntau ntxiv txog lub sijhawm ua haujlwm twg koj tuaj yeem hloov kho, thiab qhov twg yuav tsum nyob ib yam.
Vim li cas lub ntsiab lus tseem ceeb yog qhov tseem ceeb?
Grand mean centering sub lub ntsiab lus loj ntawm tus kwv yees siv qhov txhais los ntawm tag nrho cov qauv (X).. Vim li cas Grand txhais tau tias qhov chaw tseem ceeb? Lub ntsiab lus tseem ceeb yog qhov siv tau rov ntsuas duauas pab nrog kev txhais cov ntsiab lus cuam tshuam nrog kev cuam tshuam, nws txhais tau li cas, lossis qhov sib txawv ntawm txhua qib;
Vim li cas kev tshaj tawm tus kheej tseem ceeb hauv kev sib txuas lus?
Kev Tshawb Fawb qhia tias kev nthuav tawm tus kheej plays lub luag haujlwm tseem ceeb hauv kev tsim kev sib raug zoo. Nws tuaj yeem ua rau tib neeg nyob ze, nkag siab ib leeg zoo dua, thiab koom tes zoo dua. Kev xav (tsis yog qhov tseeb) tshaj tawm yog qhov tseem ceeb tshwj xeeb rau kev txhawb nqa kev nkag siab thiab tsim kev ntseeg siab.
Dab tsi yog qhov tseem ceeb thiab vim li cas nws tseem ceeb los txheeb xyuas koj qhov tseem ceeb?
Qhov tseem ceeb yuav coj koj hauv kev txiav txim siab hauv lub neej thiab ua rau koj taug qab. Qhov tseem ceeb tshaj plaws, qhov tseem ceeb tshaj plaws yuav ua rau koj ntseeg siab hais tias "tsis yog." Lawv pab koj txheeb xyuas qhov xav tau tiag tiag hauv koj lub neej, piv rau lwm tus xav tias tseem ceeb.
