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How do synchronized static methods work in Java and can I use it for loading Hibernate entities?
...s ( as opposed to instance methods and attributes )
So your assumption is correct.
I am wondering if making the method synchronized is the right approach to ensure thread-safety.
Not really. You should let your RDBMS do that work instead. They are good at this kind of stuff.
The only thing you wil...
How can I prevent the scrollbar overlaying content in IE10?
...s on as an overlay... It's a cool feature but I would like to turn it off for my specific website as it is a full screen application and my logos and menus are lost behind it.
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How to Rotate a UIImage 90 degrees?
I have a UIImage that is UIImageOrientationUp (portrait) that I would like to rotate counter-clockwise by 90 degrees (to landscape). I don't want to use a CGAffineTransform . I want the pixels of the UIImage to actually shift position. I am using a block of code (shown below) originally inten...
How do I remove the old history from a git repository?
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Just create a graft of the parent of your new root commit to no parent (or to an empty commit, e.g. the real root commit of your repository). E.g. echo "<NEW-ROOT-SHA1>" > .git/info/grafts
After creating the graft, it takes effect right away; you should be able to look at git log and se...
Connecting to remote URL which requires authentication using Java
...y the following code to be able to programatically provide a username/password so it doesn't throw a 401.
12 Answers
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Check if object exists in JavaScript
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You can safely use the typeof operator on undefined variables.
If it has been assigned any value, including null, typeof will return something other than undefined. typeof always returns a string.
Therefore
if (typeof maybeObject != "undefined") {
alert("...
Converting a Java collection into a Scala collection
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Your last suggestion works, but you can also avoid using jcl.Buffer:
Set(javaApi.query(...).toArray: _*)
Note that scala.collection.immutable.Set is made available by default thanks to Predef.scala.
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Favicon not showing up in Google Chrome [duplicate]
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Cache
Clear your cache. http://support.google.com/chrome/bin/answer.py?hl=en&answer=95582 And test another browser.
Some where able to get an updated favicon by adding an URL parameter: ?v=1 after the link href which changes the resource link and therefor...
Programmatically get height of navigation bar
I know that the presence of the more view controller (navigation bar) pushes down the UIView by its height. I also know that this height = 44px. I have also discovered that this push down maintains the [self.view].frame.origin.y = 0 .
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How to correctly use the extern keyword in C
...estion is about when a function should be referenced with the extern keyword in C.
10 Answers
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