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Fast way of counting non-zero bits in positive integer
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121
For arbitrary-length integers, bin(n).count("1") is the fastest I could find in pure Python.
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Benchmarking (python vs. c++ using BLAS) and (numpy)
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edited Sep 30 '11 at 18:19
answered Sep 30 '11 at 18:00
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How to uninstall the “Microsoft Advertising SDK” Visual Studio extension?
One of the extensions listed in Visual Studio (2012 for me) is the "Microsoft Advertising SDK for Windows 8.1". I like to uninstall extensions I don't need, but this one won't allow me. if I hover the (enabled!) button it says in a tooltip:
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Can virtual functions have default parameters?
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215
Virtuals may have defaults. The defaults in the base class are not inherited by derived classe...
Finding the Eclipse Version Number
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104
(Update September 2012):
MRT points out in the comments that "Eclipse Version" question refer...
How do I detect “shift+enter” and generate a new line in Textarea?
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13 Answers
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Creating an array of objects in Java
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A[] a = new A[4];
...creates 4 A references, similar to doing this:
A a1;
A a2;
A a3;
A a4;
Now you couldn't do a1.someMethod() without allocating a1 like this:
a1 = new A();
Similarly, with the array you need to do this:
a[0] = new A();
...before using it.
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Does JavaScript guarantee object property order?
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12 Answers
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Migrating from JSF 1.2 to JSF 2.0
I am working with a rather large app written in JSF 1.2 .
JSF 1.2 is around 6 years old now. I need to upgrade to JSF 2.0. How painful will this be? I noticed that some attributes in custom tags have been changed etc.
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