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Recommended way to get hostname in Java
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System.err.println(Runtime.getRuntime().exec("hostname")); gives me this: java.lang.UNIXProcess@6eb2384f
– user152468
Apr 23 '15 at 12:31
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How can I make a JPA OneToOne relation lazy
...rking on nullable one-to-one mappings you need to let hibernate do compile time instrumentation and add a @LazyToOne(value = LazyToOneOption.NO_PROXY) to the one-to-one relation.
Example Mapping:
@OneToOne(fetch = FetchType.LAZY)
@JoinColumn(name="other_entity_fk")
@LazyToOne(value = LazyToOneOp...
Why does C# not provide the C++ style 'friend' keyword? [closed]
...anguage.
That being said, it is a nice feature and I've used it plenty of times myself in C++; and would like to use it in C# too. But I bet because of C#'s "pure" OOness (compared to C++'s pseudo OOness) MS decided that because Java has no friend keyword C# shouldn't either (just kidding ;))
On a...
Notification when a file changes?
... watcher.Path = path;
/* Watch for changes in LastAccess and LastWrite times, and
the renaming of files or directories. */
watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite
| NotifyFilters.FileName | NotifyFilters.DirectoryName;
// Only watch text ...
Increment value in mysql update query
...hout having to query the actual amount of points, so it will save you some time and resources during the script execution.
mysql_query("UPDATE `member_profile` SET `points`= `points` + 1 WHERE `user_id` = '".intval($userid)."'");
Else, what you were doing wrong is that you passed the old amount...
Getting the last element of a split string array
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/(anything)(any separator once)(anything that isn't a separator 0 or more times)/
The replace just says replace the entire string with the stuff after the last separator.
So you can see how this can be applied generally. Note the original string is not modified.
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Is it possible to Turn page programmatically in UIPageViewController?
... could have a "spine" (like in iBooks), displaying 2 pages of content at a time. If you display 1 page of content at a time, then just pass in a 1-element array.
An example in Swift:
pageContainer.setViewControllers([displayThisViewController], direction: .Forward, animated: true, completion: nil)...
Git commit in terminal opens VIM, but can't get back to terminal
...rs ago and my only regret is I didn't started earlier. I don't consider it time wasted, you should try it. It does have a steep learning curve mind you but it will be well worth it. As for the commands, I don't have much to add. Type <esc>, type :, type x and that should be it.
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Visual Studio 2013 hangs when opening a solution
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Sometimes it's enough to simply delete the ".v12.suo" file and try to open the solution again. Helped me many times when VS2013 was freezing on loading a project.
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How to parse float with two decimal places in javascript?
...formance (like in games):
Math.round(number * 100) / 100
It's about 100 times as fast as parseFloat(number.toFixed(2))
http://jsperf.com/parsefloat-tofixed-vs-math-round
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