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Different types of thread-safe Sets in Java
... like for HashMap/HashSet. There is a limited concurrency for writing (the table is partitioned, and write access will be synchronized on the needed partition), while read access is fully concurrent to itself and the writing threads (but might not yet see the results of the changes currently being w...
What is the difference between and ?
...> element as an element of last resort, for when no other element is suitable. Use of more appropriate elements instead of the <div> element leads to better accessibility for readers and easier maintainability for authors.
(https://www.w3.org/TR/html/grouping-content.html#the-div-element)
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Technically, why are processes in Erlang more efficient than OS threads?
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To your 3rd point: Erlang enforces immutable data, so introducing SMP should not affect thread-safety.
– nilskp
Mar 14 '12 at 12:57
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Possibility of duplicate Mongo ObjectId's being generated in two different collections?
...of different "types" in the same collection, so why not just put your two "tables" in the same collection. They would share the same _id space, and thus, would be guaranteed unique. Switching from "prospective" to "registered" would be a simple flipping of a field...
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How can I use interface as a C# generic type constraint?
...t. This is the default behavior of .NET. For me, this is completely unacceptable.
Prerequirements
We need to have a constraint mechanism, so for the lack of anything better... let's use an attribute. The attribute will be present on top of a generic constraint to check if it matches our conditions...
Good MapReduce examples [closed]
...ort + an explanation of distributed sort algorithm also helps.
Join of two tables. People working with DB are familiar with the concept and its scalability problem. Show how it can be done in MR.
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When to use PNG or JPG in iPhone development?
...ded to use PNG's for any images that appear as part of the interface (in a table view, labels, etc).
As for displaying a full screen image such as a photograph you may still reap benefits with PNG's since they are non-lossy and the visual quality should be better than a JPG not to mention resource...
What is Unicode, UTF-8, UTF-16?
...II. In addition, the vast majority of commonly used characters are representable by only two bytes, in a region called the Basic Multilingual Plane (BMP). Now a character encoding is needed to access this character set, and as the question asks, I will concentrate on UTF-8 and UTF-16.
Memory consid...
Is it possible to “decompile” a Windows .exe? Or at least view the Assembly?
... binary, then you can read the binary too, either manually with an op-code table in your hand (ick) or through a disassembler.
Disassemblers have some new tricks and all, but it's important to understand that a disassembler is ultimately a search and replace mechanism. Which is why any EULA which f...
Why can tuples contain mutable items?
If a tuple is immutable then why can it contain mutable items?
8 Answers
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