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A method to reverse effect of java String.split()? [duplicate]
...d mark this as the answer to your question. Earn some points for yourself and for @john-topley.
– L S
Jun 7 '12 at 21:10
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Is a Java hashmap search really O(1)?
I've seen some interesting claims on SO re Java hashmaps and their O(1) lookup time. Can someone explain why this is so? Unless these hashmaps are vastly different from any of the hashing algorithms I was bought up on, there must always exist a dataset that contains collisions.
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What is the difference between lower bound and tight bound?
...the upper bound, while Omega is the lower bound. Theta requires both Big O and Omega, so that's why it's referred to as a tight bound (it must be both the upper and lower bound).
For example, an algorithm taking Omega(n log n) takes at least n log n time, but has no upper limit. An algorithm taking...
VIM: Deleting from current position until a space
...es the cursor to just before character x in current line.
To delete up to and including the space, use dfspace.
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Why is the use of tuples in C++ not more common?
...obody seem to use tuples in C++, either the Boost Tuple Library or the standard library for TR1? I have read a lot of C++ code, and very rarely do I see the use of tuples, but I often see lots of places where tuples would solve many problems (usually returning multiple values from functions).
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Store pictures as files or in the database for a web app?
My question is fairly generic and I know there might not be an 100% answer to it. I'm building an ASP .NET web solution that will include a lot of pictures and hopefully a fair amount of traffic. I do really want to achieve performance.
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Why are data transfer objects (DTOs) an anti-pattern?
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Some projects have all data twice. Once as domain objects, and once as data transfer objects.
This duplication has a huge cost, so the architecture needs to get a huge benefit from this separation to be worth it.
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Should C# methods that *can* be static be static? [closed]
...bly.
If you have a method that is in the first category (can-be-static), and you need to change it to access class state, it's relatively straight forward to figure out if it's possible to turn the static method into a instance method.
In a large code base, however, the sheer number of call sites...
What is the GAC in .NET?
...le without worrying about conflicts. No more DLL Hell. Each architecture and version gets it's own place to live.
It also gets it own way to browse it in Explorer, so if you go to
C:\Windows\assembly
In windows explorer it lists all the DLLs.
But if you fire up cmd, you can see how it's ...
JQuery to check for duplicate ids in a DOM
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hehe and i switched console.warn to alert(...) so i HAVE to fix them :)
– Simon_Weaver
Feb 4 '09 at 3:57
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