Hnub nyob rau hauv Java yog tsis yog hom ntaub ntawv nkaus xwb, zoo li int lossis ntab, tab sis chav kawm. … Ib Hnub nyob rau hauv Java kuj muaj xws li lub sij hawm, lub xyoo, lub npe ntawm hnub ntawm lub lim tiam, thiab lub sij hawm cheeb tsam. Ib qho ntawm nws txoj hauv kev suav nrog rho tawm lub sijhawm los ntawm Hnub Tim.
Puas yog hnub tim hom ntaub ntawv?
DATE cov ntaub ntawv hom khaws cov hnub timDATE cov ntaub ntawv hom xav tau plaub bytes. Hnub tim yog khaws cia nyob rau hauv raws li tus lej tus nqi sib npaug ntawm cov hnub txij li lub Kaum Ob Hlis 31, 1899. Vim tias DATE tus nqi khaws cia ua tus lej, koj tuaj yeem siv lawv hauv cov lej lej.
Koj tshaj tawm hnub datatype hauv Java li cas?
Hnub hnub hauv Java (nrog piv txwv)
- Hnub: Tsim cov khoom hnub uas sawv cev rau hnub tim thiab lub sijhawm tam sim no.
- Date(long milliseconds): Tsim cov khoom hnub rau cov milliseconds txij thaum Lub Ib Hlis 1, 1970, 00: 00: 00 GMT.
- Date(int year, int month, int date)
- Date(int year, int month, int date, int teev, int min)
Yog hnub twg yog chav kawm hauv Java?
The java. siv. Hnub tim sawv cev rau hnub thiab sijhawmhauv java. Nws muab cov tsim thiab cov txheej txheem los daws hnub thiab sijhawm hauv java.
hnub twg yog chav kawm?
Hnub Hnub sawv cev rau lub sijhawm tshwj xeeb hauv lub sijhawm, nrog millisecond precision Ua ntej JDK 1.1, Chav Kawm Hnub muaj ob txoj haujlwm ntxiv. Nws tso cai rau kev txhais cov hnub raws li xyoo, hli, hnub, teev, feeb, thiab qhov thib ob. Nws kuj tso cai rau formatting thiab parsing ntawm hnub cov hlua.
