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What are Runtime.getRuntime().totalMemory() and freeMemory()?

...he maximum memory. If you run with -Xms1024m -Xmx1024m, the value you get from totalMemory() and maxMemory() will be equal. Also, if you want to accurately calculate the amount of used memory, you do so with the following calculation : final long usedMem = totalMemory() - freeMemory(); ...
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Initialize class fields in constructor or at declaration?

... Really? I swear I grabbed this info from Richter's CLR via C# (2nd edition I think) and the gist of it was that this was syntactic sugar (I may have read it wrong?) and the CLR just jammed the variables into the constructor. But you're stating that this isn't t...
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How to secure database passwords in PHP?

...prefer using a database account that is only allowed to acces the database from the web server. And then I don't bother encrypting the configuration, I just store it outside the web root. – gnud Apr 25 '09 at 8:01 ...
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Why is there no xrange function in Python3?

...e iteration. And as for "consumes much more resources than Python 2.6+", from my tests, it looks like a 3.x range is exactly the same size as a 2.x xrange—and, even if it were 10x as big, building the unnecessary list is still about 10000000x more of a problem than anything the range iteration c...
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How to recursively find the latest modified file in a directory?

...ighest timestamp), cut -f2 -d" " cuts away the first field (the timestamp) from the output. Edit: Just as -printf is probably GNU-only, ajreals usage of stat -c is too. Although it is possible to do the same on BSD, the options for formatting is different (-f "%m %N" it would seem) And I missed th...
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Meaning of acronym SSO in the context of std::string

... Background / Overview Operations on automatic variables ("from the stack", which are variables that you create without calling malloc / new) are generally much faster than those involving the free store ("the heap", which are variables that are created using new). However, the size ...
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Java 8: Where is TriFunction (and kin) in java.util.function? Or what is the alternative?

... state! That's quite dynamic and that's most of the time that what we want from a lambda. Patterns like Factory are a lot easier if you can just put in a function which does the work for you. Destructive ones are easily combined with each other. If the type is right you can just compose them as y...
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Convert integer to binary in C#

... Convert from any classic base to any base in C# String number = "100"; int fromBase = 16; int toBase = 10; String result = Convert.ToString(Convert.ToInt32(number, fromBase), toBase); // result == "256" Supported bases are 2, 8,...
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Will Dart support the use of existing JavaScript libraries?

...p question. Does it really make much sense to you use Javascript libraries from Dart, when Dart is there to finally kinda replace Javascript ? And does Dart have something inbuilt for visualization ? – Amit Tomar Jan 31 '14 at 10:54 ...
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How to specify the private SSH-key to use when executing shell command on Git?

...t to specify a private SSH-key to use when executing a shell (git) command from the local computer. 29 Answers ...