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What is the JSF resource library for and how should it be used?

...module/theme name where all of those resources commonly belong to. Easier identifying This way it's so much easier to specify and distinguish where those resources belong to and/or are coming from. Imagine that you happen to have a primefaces.css resource in your own webapp wherein you're overridi...
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Get type of all variables

... How to get the type of variable when hidden underneath a global object: Everything you need is in the R manual on basic types: https://cran.r-project.org/doc/manuals/R-lang.html#Basic-types Your object() needs to be penetrated with get(...) before you can see i...
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Using smart pointers for class members

...should) return a reference rather than a pointer. While this is true, I decided to return a raw pointer here because I meant this to be a short answer that one could generalize to the case where device could be nullptr, and to show that raw pointers are OK as long as one does not use them for manual...
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What is the “FS”/“GS” register intended for?

...re intended to be independent and part of a persistent virtual store. The idea was taken from the 1966 Multics operating system, that treated files as simply addressable memory segments. No BS "Open file, write record, close file", just "Store this value into that virtual data segment" with dirty ...
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What does `someObject.new` do in Java?

... It's the way to instantiate a non-static inner class from outside the containing class body, as described in the Oracle docs. Every inner class instance is associated with an instance of its containing class. When you new an inner class from within its containing class it uses the thi...
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How do you detect Credit card type based on number?

...Number. The first six digits of the PAN are taken from the IIN, or Issuer Identification Number, belonging to the issuing bank (IINs were previously known as BIN — Bank Identification Numbers — so you may see references to that terminology in some documents). These six digits are subject to an...
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How to read the output from git diff?

...from builtin-http-fetch.c to http-fetch.c and that those two files are 95% identical (which was used to detect this rename). The last line in extended diff header, which is index f3e63d7..e8f44ba 100644 tell us about mode of given file (100644 means that it is ordinary file and not e.g. symlink, an...
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Received fatal alert: handshake_failure through SSLHandshakeException

...libraries would rely on the trust store used by the JVM for certificate validation. In most cases, this will be the cacerts file in the JRE_HOME/lib/security directory. If the location of the trust store has been specified using the JVM system property javax.net.ssl.trustStore, then the store in tha...
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Override Java System.currentTimeMillis for testing time sensitive code

Is there a way, either in code or with JVM arguments, to override the current time, as presented via System.currentTimeMillis , other than manually changing the system clock on the host machine? ...
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How to use base class's constructors and assignment operator in C++?

...rn *this; } }; The interesting thing is that this works even if you didn't explicitly define these functions (it then uses the compiler generated functions). class ImplicitBase { int value_; // No operator=() defined }; class Derived : public ImplicitBase { const char* name_; p...