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What are the reasons why Map.get(Object key) is not (fully) generic
What are the reasons behind the decision to not have a fully generic get method
in the interface of java.util.Map<K, V> .
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When would you call java's thread.run() instead of thread.start()?
When would you call Java's thread.run() instead of thread.start() ?
14 Answers
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Mercurial — revert back to old version and continue from there
I'm using Mercurial locally for a project (it's the only repo there's no pushing/pulling to/from anywhere else).
7 Answers
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What's the best way to inverse sort in scala?
What is the best way to do an inverse sort in scala? I imagine the following is somewhat slow.
9 Answers
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Should I always use a parallel stream when possible?
With Java 8 and lambdas it's easy to iterate over collections as streams, and just as easy to use a parallel stream. Two examples from the docs , the second one using parallelStream:
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How to get certain commit from GitHub project
I need to download the Facebook API from GitHub . Normally, I just click on the 'Downloads" tab to download the latest source code. In this case, I need an older commit: 91f256424531030a454548693c3a6ca49ca3f35a , but I have no idea how to get the entire project from that commit...
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Why is “using namespace std;” considered bad practice?
I've been told by others that writing using namespace std; in code is wrong, and that I should use std::cout and std::cin directly instead.
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Regular Expressions and negating a whole character group [duplicate]
I'm attempting something which I feel should be fairly obvious to me but it's not. I'm trying to match a string which does NOT contain a specific sequence of characters. I've tried using [^ab] , [^(ab)] , etc. to match strings containing no 'a's or 'b's, or only 'a's or only 'b's or 'ba' but not...
If i synchronized two methods on the same class, can they run simultaneously?
If i synchronized two methods on the same class, can they run simultaneously on the same object ? for example:
12 Answers
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How does JavaScript .prototype work?
I'm not that into dynamic programming languages but I've written my fair share of JavaScript code. I never really got my head around this prototype-based programming, does any one know how this works?
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