Hauv computer programming, tub nkees pib yog qhov kev tawm tsam ntawm kev ncua sijhawm ntawm kev tsim khoom, kev suav ntawm tus nqi, lossis lwm yam txheej txheem kim kom txog thaum thawj zaug nws xav tau. Nws yog ib hom kev ntsuam xyuas tub nkeeg uas hais txog qhov kev xav ntawm cov khoom lossis lwm yam kev pab.
tub nkees pib hauv Java yog dab tsi?
Cov txheej txheem Lazy Initialization muaj ntawm kev tshuaj xyuas tus nqi ntawm chav kawm thaum nws tau siv. Yog tias tus nqi ntawd sib npaug rau null ces daim teb ntawd tau thauj khoom nrog tus nqi tsim nyog ua ntej nws xa rov qab. Nov yog qhov piv txwv: // Java program los piav qhia.
Puas tub nkeeg pib pib zoo?
Lazy pib yog feem ntau yog siv los txhim kho kev ua tau zoo, zam kev xam khib nyiab, thiab txo qhov kev xav tau ntawm kev nco. Cov no yog cov xwm txheej feem ntau: Thaum koj muaj ib yam khoom uas kim los tsim, thiab qhov kev pab cuam yuav tsis siv nws.
Dab tsi yog tub nkeeg pib pib C++?
Lazy pib yog ib qho ntawm cov qauv tsim uas siv hauv yuav luag txhua hom lus programming. Nws lub hom phiaj yog txav cov khoom siv mus rau hauv lub sijhawm Nws yog qhov tshwj xeeb tshaj yog siv thaum tsim cov khoom kim, thiab koj xav ncua nws lig li sai tau, lossis tseem hla tag nrho.
Dab tsi yog qhov pib tub nkeeg hauv Singleton?
Lazy pib: Hauv txoj kev no, khoom yog tsim tsuas yog tias nws xav tauQhov no yuav tiv thaiv kev siv khoom siv. Ib qho kev siv ntawm getInstance txoj kev yuav tsum tau rov qab qhov piv txwv. Muaj ib qho kev kuaj tsis tau tias yog khoom tsis tsim ces tsim, txwv tsis pub rov qab tsim yav dhau los.
