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call a static method inside a class?
...o the most common way of calling a static method:
self::staticMethod();
Now, before you start thinking that the :: is the static call operator, let me give you another example:
self::bar();
This will print baz = 1, which means that $this->bar() and self::bar() do exactly the same thing; tha...
Why java.io.File doesn't have a close() method?
...g like RandomAccessFileStream could be better, but it's many year too late now.
– maaartinus
Jan 20 '11 at 20:48
7
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Can dplyr package be used for conditional mutating?
...
dplyr now has a function case_when that offers a vectorised if. The syntax is a little strange compared to mosaic:::derivedFactor as you cannot access variables in the standard dplyr way, and need to declare the mode of NA, but it ...
JavaFX and OpenJDK
...-get install openjfx
(currently this only works for Java 8 as far as I know).
Differences between Open JDK and Oracle JDK with respect to JavaFX
The following information was provided for Java 8. As of Java 9, VP6 encoding is deprecated for JavaFX and the Oracle WebStart/Browser embedded appli...
Why does C++ need a separate header file?
...against don't even need to have been written yet, never mind the compiler knowing what .cpp file they'll be in. Everything the calling code needs to know at compile time is expressed in the function declaration. At link time you will provide a list of .o files, or static or dynamic libraries, and th...
CSS does the width include the padding?
...remember (or find) the names of the different options for a couple of days now... +1 =)
– David says reinstate Monica
Jan 15 '11 at 15:04
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What is Linux’s native GUI API?
...Window defines a network protocol for communication, and any program that knows how to "speak" this protocol can use it. There is a C library called Xlib that makes it easier to use this protocol, so Xlib is kind of the native GUI API. Xlib is not the only way to access an X Window server; there is ...
Change the Right Margin of a View Programmatically?
...eft, top, right, bottom
tv.setLayoutParams(params);
I can't test it right now, so my casting may be off by a bit, but the LayoutParams are what need to be modified to change the margin.
NOTE
Don't forget that if your TextView is inside, for example, a
RelativeLayout, one should use RelativeLayout....
What is a monad?
...p(x => [x + 1])
Here we supply an operation which returns an Array, so now it conforms to the pattern. The flatMap method executes the provided function for every element in the array. It expects an array as result for each invocation (rather than single values), but merges the resulting set of...
UI Terminology: Logon vs Login [closed]
... catch. Don't even get me started on "doing things everyday" ... which is now apparently correct enough to appear on TV, in signage, and everywhere else except in a dictionary.
– Adam Liss
Jan 2 '09 at 4:51
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