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String isNullOrEmpty in Java? [duplicate]
This surely has been asked before, but Googling doesn't find it . Is there, in any of the standard java libraries (including apache/google/...), a static isNullOrEmpty() method for Strings ?
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What is an intuitive explanation of the Expectation Maximization technique? [closed]
...imization (EM) is a kind of probabilistic method to classify data. Please correct me if I am wrong if it is not a classifier.
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How to get an array of specific “key” in multidimensional array without looping
...s assume I have the following multidimensional array (retrieved from MySQL or a service):
4 Answers
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BeanFactory vs ApplicationContext
I'm pretty new to the Spring Framework, I've been playing around with it and putting a few samples apps together for the purposes of evaluating Spring MVC for use in an upcoming company project. So far I really like what I see in Spring MVC, seems very easy to use and encourages you to write classes...
C++ Const Usage Explanation
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Read this: https://isocpp.org/wiki/faq/const-correctness
The final const means that the function Method3 does not modify the non mutable members of its class.
const int* const means a constant pointer to a constant int: i.e. a pointer that cannot be...
What is the best scripting language to embed in a C# desktop application? [closed]
...ing a complex rich desktop application and need to offer flexibility in reporting formats so we thought we would just expose our object model to a scripting langauge. Time was when that meant VBA (which is still an option), but the managed code derivative VSTA (I think) seems to have withered on the...
ValueError: setting an array element with a sequence
...e an array from a list that isn't shaped like a multi-dimensional array. For example
numpy.array([[1,2], [2, 3, 4]])
or
numpy.array([[1,2], [2, [3, 4]]])
will yield this error message, because the shape of the input list isn't a (generalised) "box" that can be turned into a multidimensional a...
How to get the start time of a long-running Linux process?
...o get the start time of an old running process? It seems that ps will report the date (not the time) if it wasn't started today, and only the year if it wasn't started this year. Is the precision lost forever for old processes?
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Android - Handle “Enter” in an EditText
...board in
such a way that the "Done" button is
labeled something else (for example
"Go") and performs a certain action
when clicked (again, like onSubmit).
Also yes.
You will want to look at the android:imeActionId and android:imeOptions attributes, plus the setOnEditorActionListener() met...
Is there a way to zoom the Visual Studio text editor with a keyboard shortcut?
Yesterday I found myself needing to zoom my Visual Studio text editor and was without a mouse (don't ask). Typically I do this by holding down CTRL and scrolling the mouse wheel. I also couldn't figure out how to tab into the area where you can specify your zoom level in the lower left hand corner...