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What does it mean if a Python object is “subscriptable” or not?
...ce encourages Duck Typing. Meaning, if you plan on trying to fetch an item from your object using a subscript, go ahead and do it; if you think it might not work because the object is not subscriptable, wrap it in a try block with an except TypeError.
– Mark Reed
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Using Application context everywhere?
...per in a way that expects a Context to be supplied instead of acquiring it from Application itself. P.S. And your book is great!
– yanchenko
Jun 12 '09 at 16:39
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How to force garbage collection in Java?
...n using a nifty little trick with WeakReference objects.
RuntimeUtil.gc() from the jlibs:
/**
* This method guarantees that garbage collection is
* done unlike <code>{@link System#gc()}</code>
*/
public static void gc() {
Object obj = new Object();
WeakRefer...
Running MSBuild fails to read SDKToolsPath
...into C:\Program Files\MSBuild\Microsoft\VisualStudio\v10.0\WebApplications from my VS machine.
– dnolan
Jun 2 '10 at 9:49
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Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
...tic reference in onDestroy - Artem is correct. StevenLs approach is bourne from a lack of understanding how Java works
– Dori
Nov 19 '13 at 11:02
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How to get overall CPU usage (e.g. 57%) on Linux [closed]
...age in all the cores since the system bootup. This could be very different from the current CPU usage. To get the current value top (or similar tool) must be used.
Current CPU usage can be potentially calculated with:
awk '{u=$2+$4; t=$2+$4+$5; if (NR==1){u1=u; t1=t;} else print ($2+$4-u1) * 100 ...
How do pointer to pointers work in C?
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Looks good. Than minor issue was all that was stopping me from saying: Great post. The explaination itself was excellent. Changing to an up-vote. (Perhaps stackoverflow needs to review pointers?)
– Thanatos
May 23 '09 at 16:54
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Difference between PCDATA and CDATA in DTD
...TA is prepended by a hash in the content model to distinguish this keyword from an element named PCDATA (which would be perfectly legal).
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Organizing a multiple-file Go project [closed]
...s and there is a fair bit of variation. You can kind of tell who is coming from C and who is coming from Java, as the former dump just about everything in the projects root directory in a main package, and the latter tend to put everything in a src directory. Neither is optimal however. Each have co...
How to change past commit to include a missed file?
...to the change set. After other commits, I realized the file is now missing from a HEAD^4 commit.
4 Answers
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