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What are the key differences between Scala and Groovy? [closed]
...meant to handle. However, where multiple dispatch can only dispatch on runtime type, Scala's pattern matching can dispatch on runtime types, values, or both. Pattern matching also includes syntactically pleasant variable binding. It's hard to overstress how pleasant this single feature alone make...
How to get the current working directory in Java?
...rectory and a current-working-directory of a system process (cwd); most of time the "user.dir" points to the cwd of a (java)process; but "user.dir" has different semantics and shall not be used to obtain the cwd of a java process; btw:there are more properties available to java process docs.oracle.c...
What exactly is nullptr?
...alled instead. This is the kind of thing that, yes, doesn't happen all the time, but when it does happen, is extremely frustrating and confusing. If you didn't know the details of what is going on, it might well look like a compiler bug. A language feature that looks like a compiler bug is, well, no...
Is there a way to instantiate objects from a string holding their class name?
...f. C++ has no mechanism to create objects whose types are determined at runtime. You can use a map to do that mapping yourself, though:
template<typename T> Base * createInstance() { return new T; }
typedef std::map<std::string, Base*(*)()> map_type;
map_type map;
map["DerivedA"] = &a...
std::wstring VS std::string
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Windows actually uses UTF-16 and have been for quite some time, older versions of Windows did use UCS-2 but this is not the case any longer. My only issue here is the conclusion that std::wstring should be used on Windows because it's a better fit for the Unicode Windows API which I...
Breaking/exit nested for in vb.net
...g project just to remember my programming days in qbasic, ah such innocent times. otherwise i would go for a dummy do.
– Sharky
Mar 3 '15 at 10:26
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How to completely uninstall Visual Studio 2010?
... community wiki
7 revslifetimes
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How to detect if my shell script is running through a pipe?
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@josch I wish I could! I don't presently have time to do a deeper dive into this. But try any of your suggested approaches with both ssh -t and ssh -T - you'll see that approaches that work using ssh -t don't work using ssh -T.
– Dejay Clayton
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How to run only one local test class on Gradle
...t class. As I'm building a test case, I typically run a single method at a time to make it easier to focus on just the output I need to debug, then run the entire test case at the end.
– Jeff French
Mar 22 '14 at 16:44
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How can building a heap be O(n) time complexity?
...s buried in this topic:
How do you implement buildHeap so it runs in O(n) time?
How do you show that buildHeap runs in O(n) time when implemented correctly?
Why doesn't that same logic work to make heap sort run in O(n) time rather than O(n log n)?
How do you implement buildHeap so it runs in O(n)...