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The static keyword and its various uses in C++
The keyword static is one which has several meanings in C++ that I find very confusing and I can never bend my mind around how its actually supposed to work.
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Spring DAO vs Spring ORM vs Spring JDBC
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Here is an introduction to each mentioned technology.
Spring-DAO
Spring-DAO is not a spring module in a strict sense, but rather conventions that should dictate you to write DAO, and to write them well. As such, it does neither provide interfaces nor implement...
Remove all special characters from a string [duplicate]
...eg_replace('/-+/', '-', $string); // Replaces multiple hyphens with single one.
}
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What do hjust and vjust do when making a plot using ggplot?
...described there are how it works in geom_text and theme_text (sometimes). One way to think of it is to think of a box around the text, and where the reference point is in relation to that box, in units relative to the size of the box (and thus different for texts of different size). An hjust of 0....
Why am I getting a NoClassDefFoundError in Java?
... @DaveL. Thanks! Jared's answer with 400+ upvotes is way below! One answer with -4 up(down?)votes is way above it. There is something fishy about SO's answer ordering logic.
– Saurabh Patil
Jul 31 '17 at 14:00
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What is the proper way to re-throw an exception in C#? [duplicate]
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The first preserves the original stack trace of the exception, the second one replaces it with the current location.
Therefore the first is BY FAR the better.
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String literals: Where do they go?
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There is no one answer to this. The C and C++ standards just say that string literals have static storage duration, any attempt at modifying them gives undefined behavior, and multiple string literals with the same contents may or may no...
Type erasure techniques
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All type erasure techniques in C++ are done with function pointers (for behaviour) and void* (for data). The "different" methods simply differ in the way they add semantic sugar. Virtual functions, e.g., are just semantic sugar for
struct Class {
struct vtable...
Where does R store packages?
... I've got a dozen R manuals on my Kindle (including the 3,000+ page one) and wasn't aware of the Startup help file. I've been reading the manuals and hit a dead-end. Go figure it was a simple answer all along. Do I lose points for RTFM questions <- I don't have many to lose. Thanks again...
git rebase: “error: cannot stat 'file': Permission denied”
I'm using git, and made a small commit followed by a large one. I decided to use git rebase to squash the two commits together before pushing them. (I've never done this before.)
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