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How to specify function types for void (not Void) methods in Java8?
...e Function is not appropriate in this case because it receives a parameter and has a return value. Instead you should use Consumer (formerly known as Block)
The Function type is declared as
interface Function<T,R> {
R apply(T t);
}
However, the Consumer type is compatible with that you ...
How do I pull files from remote without overwriting local files?
...
Well, yes, and no...
I understand that you want your local copies to "override" what's in the remote, but, oh, man, if someone has modified the files in the remote repo in some different way, and you just ignore their changes and try t...
Why Collections.sort uses merge sort instead of quicksort?
...es, as there is no notion of
identity as distinct from (value) equality. And the possibility of
quadratic behavior was deemed not to be a problem in practice for
Bentely and McIlroy's implementation (or subsequently for Dual Pivot
Quicksort), which is why these QuickSort variants were used f...
Override compile flags for single files
...ompile flags when this source file builds.
You should be able to countermand the -Weffc++ flag for foo.cpp by doing
set_source_files_properties(foo.cpp PROPERTIES COMPILE_FLAGS -Wno-effc++)
This should have the effect of adding -Wno-effc++ after -Weffc++ in the compiler command, and the latter ...
jQuery append() vs appendChild()
...
The main difference is that appendChild is a DOM method and append is a jQuery method. The second one uses the first as you can see on jQuery source code
append: function() {
return this.domManip(arguments, true, function( elem ) {
if ( this.nodeType === 1 || this.nod...
JSR-303 @Valid annotation not working for list of child objects
...sses member of UserAddressesForm with @Valid annotation. See section 3.1.3 and 3.5.1 of JSR 303: Bean Validation. As I explained in my answer to the question Is there a standard way to enable JSR 303 Bean Validation using annotated method, this is the real use of @Valid annotation as per JSR 303.
E...
How does '20 seconds' work in Scala?
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There are a few things going on.
First, Scala allows dots and parens to be omitted from many method calls, so 20 seconds is equivalent to 20.seconds()*.
Second, an "implicit conversion" is applied. Since 20 is an Int and Int has no seconds method, the compiler searches for an impli...
vim repeat find next character 'x'
...s a word (or more words) containing 'x' in between the word I want to edit and the beginning cursor position.
2 Answers
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Windows: How to specify multiline command on command prompt?
how do we extend a command to next line?
4 Answers
4
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Automatically add newline at end of curl response body
...ly annoying condition where the shell prompt is in the middle of the line, and escaping is messed up enough that when I put the last curl command on the screen, deleting characters from that curl command deletes the wrong characters.
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