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“loop:” in Java code. What is this, and why does it compile?
This code just made me stare at my screen for a few minutes:
12 Answers
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What is the bit size of long on 64-bit Windows?
... long are not 64 bits on 64 bit machines and I should always use int . This did not make sense to me. I have seen docs (such as the one on Apple's official site) say that long are indeed 64 bits when compiling for a 64-bit CPU. I looked up what it was on 64-bit Windows and found
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Implements vs extends: When to use? What's the difference?
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extends is for extending a class.
implements is for implementing an interface
The difference between an interface and a regular class is that in an interface you can not implement any of the declared methods. Only the class that "im...
Check if a Class Object is subclass of another Class Object in Java
...ther non-derived classes. But how do I check derived classes? E.g. LinkedList as subclass of List . I can't find any isSubclassOf(...) or extends(...) method. Do I need to walk through all getSuperClass() and find my supeclass by my own?
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What is the best way to remove a table row with jQuery?
What is the best method for removing a table row with jQuery?
17 Answers
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In Python, what happens when you import inside of a function? [duplicate]
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Does it re-import every time the function is run?
No; or rather, Python modules are essentially cached every time they are imported, so importing a second (or third, or fourth...) time doesn't actually force them to go through the whole import process again. 1
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JavaScript open in a new window, not tab
I have a select box that calls window.open(url) when an item is selected. Firefox will open the page in a new tab by default. However, I would like the page to open in a new window, not a new tab.
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How to set default value for form field in Symfony2?
Is there an easy way to set a default value for text form field?
22 Answers
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How can two strings be concatenated?
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paste()
is the way to go. As the previous posters pointed out, paste can do two things:
concatenate values into one "string", e.g.
> paste("Hello", "world", sep=" ")
[1] "Hello world"
where the argument sep specifies the chara...
Map a network drive to be used by a service
...make the drive mapping available to the service's session when the service is started? Logging in as the service user and creating a persistent mapping will not establish the mapping in the context of the actual service.
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