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What is a NullPointerException, and how do I fix it?
...e following is 2 minutes read to understand this amazing language feature.
https://jfeatures.com/blog/NullPointerException
In java 14 following is sample NullPointerException Exception message:
in thread "main" java.lang.NullPointerException: Cannot invoke "java.util.List.size()" because "list" is ...
What is Type-safe?
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On the down side, with type safe languages, when you have a string like "123" and you want to operate on it like an int, you have to write more code to convert the string to an int, or when you have an
Quickly find whether a value is present in a C array?
... != theArray+SIZE;
}
If the compiler doesn't already apply it, then this function will do so for sure. On the other hand, it might make it harder on the optimizer to unroll the loop, so you will have to verify that in the generated assembly code...
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Find MongoDB records where array field is not empty
...d only happen if pictures is a sub-doc, not an array. e.g. pictures: {'2': 123}
– JohnnyHK
Aug 24 '15 at 19:46
5
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Is there more to an interface than having the correct methods
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123
What makes interfaces useful is not the fact that "you can change your mind and use a differen...
What is in your .vimrc? [closed]
...ace?
set backspace=2
" Line Numbers PWN!
set number
" Ignoring case is a fun trick
set ignorecase
" And so is Artificial Intellegence!
set smartcase
" This is totally awesome - remap jj to escape in insert mode. You'll never type jj anyway, so it's great!
inoremap jj <Esc>
nnoremap JJJJ ...
What are the differences between Autotools, Cmake and Scons?
..., it renders your code unusable for things like
OpenEmbedded and makes it "fun" for distributions trying to build their releases on a cross-compiler instead of on target.
Does a HUGE amount of testing for problems with ancient, broken compilers that NOBODY currently uses with pretty much anything pr...
What are the mathematical/computational principles behind this game?
My kids have this fun game called Spot It! The game constraints (as best I can describe) are:
9 Answers
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Function overloading by return type?
Why don't more mainstream statically typed languages support function/method overloading by return type? I can't think of any that do. It seems no less useful or reasonable than supporting overload by parameter type. How come it's so much less popular?
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Fastest Way to Serve a File Using PHP
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@Keyne I don't think you can. tn123.org/mod_xsendfile does not list .htaccess in the context for the XSendFilePath option
– cheshirekow
May 30 '12 at 20:49
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