2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov khoom uas tsis tau hais txog puas tuaj yeem rov hais dua? piav li cas? Yog nws muaj peev xwm peb tuaj yeemtau txais cov khoom siv tsis siv los ntawm lo lus tseem ceeb no hauv txoj kev ua tiav. Txoj kev ua tiav yog hu los ntawm tus neeg khaws khib nyiab ua ntej tso qhov piv txwv los ntawm kev pabcuam.
Yuav ua li cas hu ib zaug ib yam khoom tsis raug siv lawm?
Tus Neeg Sau Khoom khib nyiab
Java runtime ib puag ncig tshem tawm cov khoom thaum nws txiav txim siab tias lawv tsis raug siv lawm. Cov txheej txheem no hu ua khib nyiab. Ib yam khoom tsim nyog rau kev sau cov khib nyiab thaum tsis muaj cov ntaub ntawv ntxiv rau cov khoom ntawd.
txheej txheem dab tsi yuav tshem tawm cov khoom uas tsis raug xa mus?
Java runtime ib puag ncig tshem tawm cov khoom thaum nws txiav txim siab tias lawv tsis raug siv lawm. Cov txheej txheem no hu ua khib nyiab. Ib yam khoom tsim nyog rau kev sau cov khib nyiab thaum tsis muaj kev xa mus ntxiv rau cov khoom ntawd.
Koj puas tuaj yeem lav cov txheej txheem sau cov khib nyiab?
Tsis yog, khib nyiab tsis lav tias qhov kev zov me nyuam yuav tsis khiavtawm ntawm lub cim xeeb. Lub hom phiaj ntawm kev khaws khib nyiab (GC) yog txhawm rau txheeb xyuas thiab muab pov tseg cov khoom uas tsis xav tau los ntawm Java program, kom lawv cov peev txheej tuaj yeem rov qab thiab rov siv dua.
Vim li cas peb thiaj xav tau cov khib nyiab hauv Java?
Nws yog txoj haujlwm ntawm kev khaws khib nyiab (GC) hauvJava virtual tshuab (JVM) txhawm rau txiav txim siab seb lub cim xeeb dab tsi tsis raug siv los ntawm Java daim ntawv thov thiab rov ua dua lub cim xeeb no rau lwm yam kev siv. … Kev sau khib nyiab tso tawm tus programmer los ntawm kev tswj hwm tus kheej nrog lub cim xeeb deallocation.
Pom zoo:
Puas yog rov tshwm sim dua lossis rov tshwm sim dua?
Reoccur thiab recur yog verbs uas qhia ib lo lus hauv paus. Thaum lawv nyob ze heev ntawm lub ntsiab lus, lawv tsis zoo ib yam. Tej yam uas yog rov tshwm sim dua thiab dhau mus, tej zaum nyob rau ib ntus. Hauv qhov sib piv, ib yam dab tsi uas rov tshwm sim tsuas yog tshwm sim dua tab sis tsis tas yuav rov ua dua.
Cov khoom siv rov qab puas yuav tsum tau ntim khoom?
teb rau lo lus nug no yog ib qho loj "Tsis muaj,"rau hnab ntim lawv. Qhov laj thawj tseem ceeb feem ntau cov chaw rov ua dua tshiab tau thov kom tib neeg tsis txhob tso lawv cov khoom siv rov ua dua tshiab rau hauv lub hnab yog vim lub hnab xoob tau daig hauv cov tshuab uas txheeb cov khoom siv rov ua dua tshiab.
Cov khoom siv puas yog khoom vaj khoom tsev?
khoom yog a khoom vaj khoom tsev ruaj khov, lossis khoom tsis yog tam sim no. Qhov no txhais tau tias nws yuav tsis raug muag hauv lub xyoo tom ntej accounting thiab tsis tuaj yeem ua kua tau yooj yim. Txawm hais tias nws yog qhov zoo kom muaj cov khoom muaj nqis tam sim no uas muab koj lub lag luam npaj nkag mus rau cov nyiaj ntsuab, tau txais cov cuab tam mus sij hawm ntev kuj yog qhov zoo.
Qhov twg yog hais txog kev rov siv dua thiab rov ua dua tshiab?
Recycling txhais tau tias tig ib yam khoom rau hauv cov ntaub ntawv raw uas tuaj yeem siv dua, feem ntau yog rau cov khoom tshiab. Qhov no yog ib txoj kev siv zog. Reusing hais txog kev siv ib yam khoom raws li nws tsis muaj kev kho mob. Qhov no txo cov pa phem thiab pov tseg, yog li ua rau nws muaj kev ruaj ntseg dua.
Puas yog cov khoom siv tsawg dua cov neeg siv khoom?
khoom muag tau yuav tsawg dua los ntawm cov neeg siv khoom. Cov neeg siv khoom feem ntau sib piv cov yam ntxwv ntawm cov khoom lag luam xws li zoo, nqe, thiab style ntawm lwm yam khoom. Puas yog cov khoom lag luam uas cov neeg siv khoom yuav nquag thiab siv zog tsawg?
