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Java

Java???

Java ?????? exe? ???? ??

Java?? exe? ???? ??: 1. ?? Java ????? jar ??? ??????. 2. exe4j? ???? jar ???? exe ??? ?????. ?? ??? ??? ?? ???? ??? ???? "JRA IN EXE"? ??? ?? ? ?? ??? ???? ???? jar ??? exe? ?????.

Dec 28, 2019 am 09:53 AM

java

Java? ?? ??? ???? ???? ??? ?????.

???? ???? ???? Java ?? ??: ?? ??? "^-?\\d+(\\.\\d+)?$"? ??? ?? match() ???? ???? ???? ????? ?????. ??? ?? ??? ??? ???? ???? ??? ??? ? ????.

Dec 28, 2019 am 09:27 AM

java

?? ??? ????? ???? Java ???

Java?? ?? ??? ????? ???? ??: ?? ???? sendUrgentData ???? ???? ??? SO_OOBINLINE ??? ?? ??? ??? ? ????. Java?? ??? ?????.

Dec 27, 2019 pm 04:51 PM

java socket

Java ??????? ??? ?? ??? ?? ???

Java ??????? ??? ?? ?? ?? ??: ??????? ??? URL ?? useUnicode=true&characterEncoding=UTF-8 ????? ???? ?????? ?? ?? ??? ?????.

Dec 27, 2019 pm 04:31 PM

java ??? ?? ??? ???

Java?? ? ??? ?? ??? ???? ??

Java?? ? ??? ?? ??? ???? ??: 1. Calendar.YEAR ? Calendar.DAY_OF_YEAR ???? ???? ? ??? ?? ??? ?? ??? ?????. 2. SimpleDateFormat? ???? ? ??? ??? ??? ?? ??? ???? ?????.

Dec 27, 2019 pm 04:13 PM

java

Java? ??? ???? ?????.

"get(Calendar.DAY_OF_WEEK)-1" ???? ???? ??? ??? ???? ??? ????. ?? ??? 0 ?? 6?? ?? ??? ???? ?????. Java??? Calendar.DAY_OF_WEEK ???? ???? ??? ??? ??? ???? ??? ??? ? ????. 1-7? ????? ???? ?????.

Dec 27, 2019 pm 03:39 PM

java

Java?? ??? ??? ???? ??????

Java?? ??? ??? ???? ??? ????. 1. Sleep? Thread ????? ???? ??? Object ????? ?????. 2. ?? ???? ??? ???? ??? ?? ???? ??? ???? ?? ???? ??? ? ??? ???. ??? ?? ?? ?? ??.

Dec 27, 2019 pm 03:14 PM

java sleep wait

???? ???? ???? Java ??

Java?? ???? ???? ???? ??: ???? charAt() ???? ???? ???? ??? ??? ??? ?? isDigit() ???? ???? ??? ??? ???? ?????.

Dec 27, 2019 pm 02:50 PM

java

HTML? ??? ???? ??????

HTML? Java? ????? ????. Java? ???? ????? ????, html? ????? ??? ?? ??? ??? ?? ?? ? ????? ?????.

Dec 27, 2019 pm 02:44 PM

html java

Java?? ??? ??? ??

Java??? mkdir() ???? ???? ?? ??? ??? ? ????. ? ???? ???? ????? ???? ?? ?? ?? ??? ????? ???? ???. ?? mkdirs() ???? ???? ?? ?? ????? ??????. ? ?????? ?? ??? ????? ??? ??? ????.

Dec 27, 2019 pm 02:37 PM

java

C ??? Java ???? ??? ????. ?? ?? ??? ????. 1. C ???? ???? ??? Java?? ???? ????. 2. C ???? ??? ? ?? ????? ??, ???, ???, ??? ??? ??? ??? ? ????. C?? ??? ? ?? ? ?? ??? ?? Java?? ??? ? ?? ????? ?? ??($)? ?????. , ??? ??? ?? ????.

Dec 27, 2019 pm 02:29 PM

c java ??

???? IP ??? ?? ??

Java?? IP? ?? ??: HttpServletRequest ??? ?? IP ??? ??? ? ????. ??? getRemoteAddr ???? ??? ?????? IP ??? ????, getLocalAddr ???? ? ??? IP ??? ?????.

Dec 27, 2019 pm 02:27 PM

java

?? ???? ??? ???? ??????

???: 1. ??? ??? ??? ??? ????? ???? ??? ????. 2. ???? ???? ????. ??? ????? ?? ???? ??? ??? ? ????. ???? ??? ?? ??? ???? ???? ??? ???? ??? ? ????.

Dec 27, 2019 pm 02:06 PM

java ?? ???

??? Java ????? ??? ??? ?? ???

Java ????? ??? ? ??? ??? ?? ?? ??: 1. ?????? ??? ??? ??? ???? ???? ???? ??? ?? ??? ?? ???? ?????. 2. IDE?? Window-preferences-General-Workspace? ???? ???? ?????.

Dec 27, 2019 pm 01:50 PM

java ??? ??