text. SimpleDateFormat chav kawm yog siv rau ob qho tib si parse thiab format hnub raws li tus qauv formatting koj qhia koj tus kheej. Thaum parsing hnub, Java SimpleDateFormat feem ntau parses hnub los ntawm Java String.
Kev siv SimpleDateFormat yog dab tsi?
SimpleDateFormat yog chav kawm ua ke rau kev formatting thiab cais cov hnub nyob rau hauv ib cheeb tsam-sensitive. Nws tso cai rau formatting (hnub tim -> ntawv), parsing (ntawv nyeem -> hnub), thiab normalization. SimpleDateFormat tso cai rau koj pib los ntawm kev xaiv cov qauv uas tus neeg siv tau teev tseg rau hnub tim formatting.
Koj yuav tsum siv SimpleDateFormat?
Yes! Tsis txhob siv SimpleDateFormat. Java 8 muaj qhov zoo dua thiab txhim kho ntau dua DateTimeFormatter uas tseem muaj xov zoo. Koj yuav tsum tsis txhob siv Hnub thiab Calendar chav kawm, thiab sim siv Java 8 DateTime chav kawm xws li OffsetDateTime, ZonedDateTime, LocalDateTime, LocalDate, LocalTime thiab lwm yam.
SimpleDateFormat yog dab tsi?
The SimpleDateFormat yog a cov chav kawm ua ke rau formatting thiab parsing hnub uas inherits java. text. DateFormat chav kawm. Daim ntawv ceeb toom tias formatting txhais tau tias hloov hnub rau txoj hlua thiab parsing txhais tau tias hloov txoj hlua mus rau hnub tim.
SimpleDateFormat default timezone yog dab tsi?
Yog tsis tau teev tseg, lub sijhawm zone cuam tshuam nrog SimpleDateFormat tshiabyog lub neej ntawd ib qho, sib xws rau thaj tsam sijhawm qhia los ntawm kev ua haujlwm. Xav txogcov cai hauv qab no: SimpleDateFormat sdf=tshiab SimpleDateFormat("dd-MM-yyyy"); Hnub tim=sdf.
