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Getting the current Fragment instance in the viewpager
...o update the fragment that is currently visible. To update that I have to call a method which is in the fragment class. Can someone please suggest how to call that method?
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What are the differences between Generics in C# and Java… and Templates in C++? [closed]
... my voice to the noise and take a stab at making things clear:
C# Generics allow you to declare something like this.
List<Person> foo = new List<Person>();
and then the compiler will prevent you from putting things that aren't Person into the list.
Behind the scenes the C# compiler is j...
How to ALTER multiple columns at once in SQL Server
.... Each statement means a new scan but if you could alter multiple columns, all altering could have been much quicker
– erikkallen
Sep 8 '16 at 6:31
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Python loop that also accesses previous and next values
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The edited version of this is still not logically sound: At the end of the loop obj and next_ will be the same object for the last iteration, which may have unintended side effects.
– TemporalWolf
Dec 5 '17 at 22:01
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Checking if a string is empty or null in Java [duplicate]
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@HonzaKalfus "Calling isEmpty() returns true for string containing whitespace character" - That is not true! " ".isEmpty() returns false
– MestreLion
Sep 1 '17 at 1:59
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Why does sys.exit() not exit when called inside a thread in Python?
...and I'm confused as to why the following code snippet would not exit when called in the thread, but would exit when called in the main thread.
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How do I list all loaded assemblies?
In .Net, I would like to enumerate all loaded assemblies over all AppDomains. Doing it for my program's AppDomain is easy enough AppDomain.CurrentDomain.GetAssemblies() . Do I need to somehow access every AppDomain? Or is there already a tool that does this?
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Understanding repr( ) function in Python
...gt;>> x
'foo'
So the name x is attached to 'foo' string. When you call for example repr(x) the interpreter puts 'foo' instead of x and then calls repr('foo').
>>> repr(x)
"'foo'"
>>> x.__repr__()
"'foo'"
repr actually calls a magic method __repr__ of x, which gives the s...
How does Bluebird's util.toFastProperties function make an object's properties “fast”?
... eval("o" + o); // ensure no dead code elimination
}
Sans one or two small optimizations - all the below is still valid.
Let's first discuss what it does and why that's faster and then why it works.
What it does
The V8 engine uses two object representations:
Dictionary mode - in which object ar...
Variable length (Dynamic) Arrays in Java
...ou want - which is inefficient and a pain for you.
Fortunately, there are all kinds of built-in classes that implement common data structures, and other useful tools too. You'll want to check the Java 6 API for a full list of them.
One caveat: ArrayList can only hold objects (e.g. Integers), not ...