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Using global variables in a function
... each function that assigns a value to it:
globvar = 0
def set_globvar_to_one():
global globvar # Needed to modify global copy of globvar
globvar = 1
def print_globvar():
print(globvar) # No need for global declaration to read value of globvar
set_globvar_to_one()
print_globvar...
Why does C++ need a separate header file?
...ember how they work together, supplemented by your header comments. B.Went one person un taking care of defining all the object structure and some else is taking care of implementation it keeps things organized. Over all I think it makes complex code more readable.
– Andres Ca...
org.hibernate.MappingException: Could not determine type for: java.util.List, at table: College, for
...using Hibernate for all CRUD operations in my project. It doesn't work for One-To-Many and Many-To-One relationships. It gives me the below error.
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Why XML-Serializable class need a parameterless constructor
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The accessibility tip is a good one, but your explanation makes no sense for serialization. An object needs to be created only for de-serialization. I'd hazard a guess that the type-check code is built into the XmlSerializer constructor because a single in...
How to change Rails 3 server default port in develoment?
...le - you are monkey-patching the server runner - so it will influence just one project.
UPDATE: Yes, I know that the there is simpler solution with bash script containing:
#!/bin/bash
rails server -p 10524
but this solution has a serious drawback - it is boring as hell.
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Pass Method as Parameter using C#
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It's very userfully. With this way, can use one or many parameters. I guess, the most updated answer is this.
– bafsar
Jan 23 '15 at 16:53
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Making the Android emulator run faster
...is a bit sluggish. For some devices, like the Motorola Droid and the Nexus One, the app runs faster in the actual device than the emulator. This is a problem when testing games and visual effects.
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How to index into a dictionary?
... In Python 2, use d.iterkeys().next() instead of d.keys()[0] to inspect one of the keys without removing it. If the dictionary is huge, it will make a big difference in terms of performance. The same goes for values and items. In Python 2.7 you can also use dict view objects
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Matplotlib (pyplot) savefig outputs blank image
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First, what happens when T0 is not None? I would test that, then I would adjust the values I pass to plt.subplot(); maybe try values 131, 132, and 133, or values that depend whether or not T0 exists.
Second, after plt.show() is called, a new figure is created....
Alternative to itoa() for converting integer to string C++? [duplicate]
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Despite the fact some functions are not in the standard, as rightly mentioned by "onebyone" in one of his comments, most compiler will offer you an alternative (e.g. Visual C++ has its own _snprintf you can typedef to snprintf if you need it).
The C++ way.
Use the C++ streams (in the current case ...