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Read-only list or unmodifiable list in .NET 4.0
From what I can tell, .NET 4.0 still lacks read-only lists. Why does the framework still lack this functionality? Isn't this one of the commonest pieces of functionality for domain-driven design ?
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CSS: How to have position:absolute div inside a position:relative div not be cropped by an overflow:
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A trick that works is to position box #2 with position: absolute instead of position: relative. We usually put a position: relative on an outer box (here box #2) when we want an inner box (here box #3) with position: absolute to be...
How do I detect the Python version at runtime? [duplicate]
...sions < 3.x and >= 3.x. Is there a way to introspect the Python runtime to know the version which it is running (for example, 2.6 or 3.2.x )?
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Java 32-bit vs 64-bit compatibility
Will Java code built and compiled against a 32-bit JDK into 32-bit byte code work in a 64-bit JVM? Or does a 64-bit JVM require 64-bit byte code?
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Remove characters except digits from string using Python?
...a12333bb445bb54b5b52'
>>> import string
>>> all=string.maketrans('','')
>>> nodigs=all.translate(all, string.digits)
>>> x.translate(all, nodigs)
'1233344554552'
>>>
string.maketrans makes a translation table (a string of length 256) which in this case...
Threading pool similar to the multiprocessing Pool?
Is there a Pool class for worker threads , similar to the multiprocessing module's Pool class ?
9 Answers
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Horizontal ListView in Android?
Is it possible to make the ListView horizontally? I have done this using a gallery view, but the selected item comes to the center of the screen automatically. I don't want the selected item at the same spot I clicked. How can I rectify this problem? My idea was to set the ListView with a horizo...
How do I keep the screen on in my App? [duplicate]
For my Android app I never want the phone to lock or the back light to turn off
11 Answers
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How can I suppress all output from a command using Bash?
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The following sends standard output to the null device (bit bucket).
scriptname >/dev/null
And if you also want error messages to be sent there, use one of (the first may not work in all shells):
scriptname &>/dev/null
scriptname >/dev/null 2>&1
scriptname >/de...
Checking a Python module version at runtime
...te which holds the version information for the module (usually something like module.VERSION or module.__version__ ), however some do not.
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