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What is the difference between Integer and int in Java?
...ust as with any other reference (object) type. Integer.parseInt("1") is a call to the static method parseInt from class Integer (note that this method actually returns an int and not an Integer).
To be more specific, Integer is a class with a single field of type int. This class is used where you n...
Create Pandas DataFrame from a string
...f you need code that is compatible with both Python 2 and 3, you can optionally also use from pandas.compat import StringIO, noting that it's the same class as the one that comes with Python.
– Acumenus
Sep 27 '17 at 17:32
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C++ STL Vectors: Get iterator from index?
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Generally, you can use the same arithmetic with STL iterators than with pointers. They are designed to be exchangeable when using STL algorithms.
– Vincent Robert
Mar 22 '09 at 21:07
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Hibernate lazy-load application design
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As we all known, hibernate tries to be as non-invasive and as transparent as possible
I would say the initial assumption is wrong. Transaparent persistence is a myth, since application always should take care of entity lifecycle ...
Android phone orientation overview including compass
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Roll is a function of gravity, a 90 degree roll puts all of gravity into the x register.
Pitch is the same, a 90 degree pitch up puts all of the component of gravity into the y register.
Yaw / Heading / azimuth has no effect on gravity, it is ALWAYS at right angles to gravity...
Inline functions in C#?
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Finally in .NET 4.5, the CLR allows one to hint/suggest1 method inlining using MethodImplOptions.AggressiveInlining value. It is also available in the Mono's trunk (committed today).
// The full attribute usage is in mscorlib.d...
Resetting the UP-TO-DATE property of gradle tasks?
Is there a way I can force a gradle task to run again, or reset all tasks back to the not UP-TO-DATE state?
4 Answers
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What is the equivalent of “none” in django templates?
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None, False and True all are available within template tags and filters. None, False, the empty string ('', "", """""") and empty lists/tuples all evaluate to False when evaluated by if, so you can easily do
{% if profile.user.first_name == None...
Benchmarking small code samples in C#, can this implementation be improved?
Quite often on SO I find myself benchmarking small chunks of code to see which implemnetation is fastest.
11 Answers
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How do I add a Maven dependency in Eclipse?
I don't know how to use Maven at all. I've been developing for a couple years with Eclipse and haven't yet needed to know about it. However, now I'm looking at some docs that suggest I do the following:
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