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How to check if an int is a null
.... you need to do
if (person != null){ // checks if person is not null
}
and
if(person.equals(null))
The above code would throw NullPointerException when person is null.
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difference between throw and throw new Exception()
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throw; rethrows the original exception and preserves its original stack trace.
throw ex; throws the original exception but resets the stack trace, destroying all stack trace information until your catch block.
NEVER write throw ex;
throw new Exception(ex.Message...
Preserving signatures of decorated functions
...rect signature on Python 3.4. Why do you think functools.wraps() is broken and not IPython?
– jfs
Jan 5 '16 at 4:35
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In Java, how do I parse XML as a String instead of a file?
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@shsteimer I am passing in xml string and it is returning null. It does not throw any exception. What must be wrong?
– sattu
Jun 28 '13 at 20:47
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How can I convert String to Int?
I have a TextBoxD1.Text and I want to convert it to an int to store it in a database.
30 Answers
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How can I get Maven to stop attempting to check for updates for artifacts from a certain group from
...idual artifacts, which are roughly split into two libraries of shared code and maybe ten applications which use them. All of these items live in the namespace com.mycompany.* .
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How to use “raise” keyword in Python [duplicate]
...ve read the official definition of "raise", but I still don't quite understand what it does.
6 Answers
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Reimport a module in python while interactive
... useful if you have edited the module source file using an external editor and want to try out the new version without leaving the Python interpreter.
If running Python 3.4 and up, do import importlib, then do importlib.reload(nameOfModule).
Don't forget the caveats of using this method:
When ...
Remove leading zeros from a number in Javascript [duplicate]
What is the simplest and cross-browser compatible way to remove leading zeros from a number in Javascript ?
3 Answers
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What is the opposite of 'parse'? [closed]
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err.. why not ToString() ? Seems to be the standard set by the likes of Int32, etc
– Joseph Kingry
Oct 20 '09 at 20:06
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