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How to get year, month, day, hours, minutes, seconds and milliseconds of the current moment in Java?
...ute();
int second = now.getSecond();
int millis = now.get(ChronoField.MILLI_OF_SECOND); // Note: no direct getter available.
System.out.printf("%d-%02d-%02d %02d:%02d:%02d.%03d", year, month, day, hour, minute, second, millis);
Or, when you're not on Java 8 yet, make use of java.util.Calendar.
Cal...
What is meant by the term “hook” in programming?
...For example, a function may be written to "hook" into the login process in order to execute a Captcha function before continuing on to the normal login process.
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Does Spring @Transactional attribute work on a private method?
...the target class will be 'weaved' (i.e. its byte code will be modified) in order to turn @Transactional into runtime behavior on any kind of method.
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How to deal with “data of class uneval” error from ggplot2?
...eom you need to use the data= argument. Or put the arguments in the proper order mapping=..., data=.... Take a look at the arguments for ?geom_line.
Thus:
p + geom_line(data=df.last, aes(HrEnd, MWh, group=factor(Date)), color="red")
Or:
p + geom_line(aes(HrEnd, MWh, group=factor(Date)), df.la...
How to tell git to use the correct identity (name and email) for a given project?
...cting to have multiple local repositories for the same project, notably in order to switch between branches more easily without having to recompile everything. Maybe it's just a bad svn habit. Thanks.
– Martin Jambon
May 24 '11 at 20:50
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When is TCP option SO_LINGER (0) required?
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The typical reason to set a SO_LINGER timeout of zero is to avoid large numbers of connections sitting in the TIME_WAIT state, tying up all the available resources on a server.
When a TCP connection is closed cleanly, the end that initiated the close ("a...
Which characters are illegal within a branch name?
...to use the dollar sign $ character.
git branch pew$ign will create pew. In order to create a branch that has $ within it the whole name should be wrapped in quotes: git branch 'pewSign'. Ideally you should avoid to use the symbol whatsoever.
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backbone.js - events, knowing what was clicked
...d use ev.currentTarget as described on http://www.quirksmode.org/js/events_order.html
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Omitting one Setter/Getter in Lombok
... Lombok. Since it has about a dozen fields, I annotated it with @Data in order to generate all the setters and getter. However there is one special field for which I don't want to the accessors to be implemented.
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How to append one file to another in Linux from the shell?
...w-zero-length file onto itself. This makes sense when you think about the order in which the operations could and should occur but is subtle enough that it catches many people by surprise. So if nothing else, eumiro and you have prompted a further improvement to the answer. Thanks for that!
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