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How can I create a copy of an object in Python?
...would like to create a copy of an object. I want the new object to possess all properties of the old object (values of the fields). But I want to have independent objects. So, if I change values of the fields of the new object, the old object should not be affected by that.
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Is the NOLOCK (Sql Server hint) bad practice?
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It is occassionally useful, but not normally for production. I use it frequently for pulling out a sample of data to test with or for generating reports where I mostly care about rough order of magnitude where a dirty read won't matter.
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.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
... the result may be different.
Benchmark results (score in microseconds, smaller = better):
Benchmark (n) Mode Samples Score Error Units
c.a.p.SO29378922.preSize 1 avgt 30 0.025 ▒ 0.001 us/op
c.a.p.SO29378922.preSize 100 avgt 30 0.15...
HTTP URL Address Encoding in Java
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@Mohamed: the class I mentioned and used for testing actually is java.net.URI: it worked perfectly (Java 1.6). I would mention the fully qualified class name if it was not the standard Java one and the link points to the documentation of java.net.URI. And, by the comment of Sudhaka...
How to add multi line comments in makefiles
...efile for debugging reasons, and adding a backslash on every line is not really practical. If you are using GNU make, I suggest you use the ifeq directive with a deliberately false expression. For example:
ifeq ("x","y")
# here's all your 'commented' makefile content...
endif
Hope that helps.
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Convert char to int in C and C++
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Well, in ASCII code, the numbers (digits) start from 48. All you need to do is:
int x = (int)character - 48;
Or, since the character '0' has the ASCII code of 48, you can just write:
int x = character - '0'; // The (int) cast is not necessary.
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What is the difference between and ?
...ue may or may not have any real meaning.
<html lang="en-US"> essentially means "this page is in the US style of English." In a similar way, <html lang="en-GB"> would mean "this page is in the United Kingdom style of English."
If you really wanted to specify an invalid combination, you...
How to find the kth smallest element in the union of two sorted arrays?
...the demonstration you can use the loop invariant i + j = k, but I won't do all your homework :)
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Best Practice for Forcing Garbage Collection in C#
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According to MSDN:
"It is possible to force garbage
collection by calling Collect, but
most of the time, this should be
avoided because it may create
performance issues. "
However, if you can reliably test your code to confirm that calling Collect() won't have a negative impact then ...
How to find the files that are created in the last hour in unix
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This is great and all, but these flags don't exist on Solaris find that I'm using. OP said Unix and I think these are Linux only.
– jiggy
Apr 17 '14 at 19:53
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