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Difference between SurfaceView and View?
...mal view update mechanism is constraint or controlled by the framework:You call view.invalidate in the UI thread or view.postInvalid in other thread to indicate to the framework that the view should be updated. However, the view won't be updated immediately but wait until next VSYNC event arrived. T...
What exactly does an #if 0 … #endif block do?
...hting) the */ after the word "NULL" terminates the comment, making the baz call not commented out, and the */ after baz a syntax error. On the other hand:
#if 0
foo();
bar(x, y); /* x must not be NULL */
baz();
#endif
Works to comment out the entire thing. And the #if 0s will nest with each other...
Why can't I define a static method in a Java interface?
...oking a static method requires a class, and since that class is known statically—at compile time—dynamic dispatch is unnecessary.
A little background on how instance methods work is necessary to understand what's going on here. I'm sure the actual implementation is quite different, but let me e...
General guidelines to avoid memory leaks in C++ [closed]
...+ programs? How do I figure out who should free memory that has been dynamically allocated?
29 Answers
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Excel “External table is not in the expected format.”
...cation\RedirectApplication\301s.xlsx";
public static string connStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=Excel 12.0;";
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What does WISC (stack) mean? [closed]
...:
Windows, IIS, SQL Server, ASP.net
I don't know why anyone would want to call it WISC, as these people are essentially saying "We will never ever use VB.NET, IronPython, IronRuby, F# or any other .NET Language". Also calling it .NET (WISN) sounds a bit weird as well, since ASP.NET is the Web-Techn...
Executing command line programs from within python [duplicate]
...ort subprocess
#subprocess.check_output(['ls', '-l']) # All that is technically needed...
print(subprocess.check_output(['ls', '-l']))
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Java split() method strips empty strings at the end? [duplicate]
...discarded.
If you don't like that, have a look at Fabian's comment. When calling String.split(String), it calls String.split(String, 0) and that discards trailing empty strings (as the docs say it), when calling String.split(String, n) with n < 0 it won't discard anything.
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Generic method with multiple constraints
...ach constraint rather than separating them with a comma:
public TResponse Call<TResponse, TRequest>(TRequest request)
where TRequest : MyClass
where TResponse : MyOtherClass
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How should I organize Python source code? [closed]
...arise the process briefly.
Assume you currently have everything in a file called main.py:
Create another source file in the same folder (let's call ours utils.py for this example)
Move whatever classes, functions, statements, etc you need from main.py into utils.py
In main.py add a single line at...