java.util
Class Calendartime
protected long time
The currently set time for this calendar, expressed in milliseconds after January 1, 1970, 0:00:00 GMT. See Also:
isTimeSet
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Java doc中的东东,看看吧
Class Calendartime
protected long time
The currently set time for this calendar, expressed in milliseconds after January 1, 1970, 0:00:00 GMT. See Also:
isTimeSet
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Java doc中的东东,看看吧
long time1 = System.currentTimeMillis();程序运行...程序结束时:
long time2 = System.currentTimeMillis();
long runTime = time2 - time1;^-^
long startTime = System.currentTimeMillis();程序结束之前在执行一次,
long endTime = System.currentTimeMillis();最终执行时间 = endTime - startTime;