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What is a serialVersionUID and why should I use it?
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The docs for java.io.Serializable are probably about as good an explanation as you'll get:
The serialization runtime associates with each serializable class a version number, called a serialVersionUID, which is used during deserialization to verify th...
Track a new remote branch created on GitHub
I have already got a local master branch tracking the remote master branch of a github project. Now, a collaborator of mine has created a new branch in the same project, and I want to do the following accordingly:
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I need to pop up and trash away a “middle” commit in my master branch. How can I do it?
For example, in the following master branch, I need to trash just the commit af5c7bf16e6f04321f966b4231371b21475bc4da, which is the second due to previous rebase:
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Heroku push rejected, no Cedar-supported app detected
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I had a similar problem, but with Django (incorrectly named "requirements.txt"). I think to generalize the other answers here, when you get this error it's because Heroku is missing some key file that it uses to identify your app (and its type)...
How do I specify different layouts for portrait and landscape orientations?
I've seen references to being able to specify two separate layout xml files for an activity, one for Portrait and one for Landscape. I've not been to find any information on how to do that though. How do I specify for each activity which xml file is it's portrait layout and which is the Landscape ...
How to send data to local clipboard from a remote SSH session
Borderline ServerFault question, but I'm programming some shell scripts, so I'm trying here first :)
11 Answers
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Remove multiple elements from array in Javascript/jQuery
... values while the second array contains indices of the values which should be removed from the first array. For example:
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Give examples of functions which demonstrate covariance and contravariance in the cases of both over
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Covariance:
class Super {
Object getSomething(){}
}
class Sub extends Super {
String getSomething() {}
}
Sub#getSomething is covariant because it returns a subclass of the return type of Super#getSomething (but fullfills the contract of Super.getSo...
Regular expression to stop at first match
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You need to make your regular expression non-greedy, because by default, "(.*)" will match all of "file path/level1/level2" xxx some="xxx".
Instead you can make your dot-star non-greedy, which will make it match as few characters as possible:
/location="(.*?)"/
Adding a ? o...
Vim users, where do you rest your right hand? [closed]
...te usage for vi. For one, h and l really don't matter that much. w, e, and b are significantly more useful for horizontal navigation. As a bonus, ; is easy to get at if the language requires it. Having a weaker finger on k hurts, and you don't need your strongest finger on the h, when it should be o...