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How to display a content in two-column layout in LaTeX?
I am writing an article in LaTeX and I would like to display some content in two column layout. In the left column a matrix and in the right column a list of items. I have tried with tabular environment but it does not work as I want.
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Why can I throw null in Java? [duplicate]
...erException.
In other words, throw checks that its argument is nonnull, and if it is null, it throws a NullPointerException.
JLS 14.18 specifies this behavior:
If evaluation of the Expression completes normally, producing a null value, then an instance V' of class NullPointerException is cre...
mongodb count num of distinct values per field/key
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MongoDB has a distinct command which returns an array of distinct values for a field; you can check the length of the array for a count.
There is a shell db.collection.distinct() helper as well:
> db.countries.distinct('country');
[ "Spain", "Engl...
How to combine paths in Java?
...path2 is an absolute path. The Java version will drop the leading / or \ and treat it as a relative path.
– finnw
Feb 12 '10 at 18:17
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Passing two command parameters using a WPF binding
I have a command which I am executing from my XAML file using the following standard syntax:
5 Answers
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Missing return statement in a non-void method compiles
...ered a situation where a non-void method is missing a return statement and the code still compiles.
I know that the statements after the while loop are unreachable (dead code) and would never be executed. But why doesn't the compiler even warn about returning something? Or why would a language...
Where do you include the jQuery library from? Google JSAPI? CDN?
There are a few ways to include jQuery and jQuery UI and I'm wondering what people are using?
16 Answers
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How to get current moment in ISO 8601 format with date, hour, and minute?
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@Joachim The negative side of this "standard" approach is that I have to have many instances of "yyyy-MM-dd'T'HH:mmZ" in my application, every time I need an ISO-8601 formatted date. With JodaTime, as I see, I can use a pre-defined formatter ISODateTimeFormat, wh...
Subprocess changing directory
...ode tries to do is call a program named cd ... What you want is call a command named cd.
But cd is a shell internal. So you can only call it as
subprocess.call('cd ..', shell=True) # pointless code! See text below.
But it is pointless to do so. As no process can change another process's working ...
Renaming a virtualenv folder without breaking it
I've created folder and initialized a virtualenv instance in it.
10 Answers
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