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How to disable an Android button?
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I tried it is not working, only from code setEnabled is working
– FindOutIslamNow
Aug 14 '18 at 5:24
add a comment
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Where is virtualenvwrapper.sh after pip install?
...file:
find / -name virtualenvwrapper.sh
This will search all directories from the root for the file.
on ubuntu 12.04 LTS, installing through pip, it is installed to
/usr/local/bin/virtualenvwrapper.sh
on ubuntu 17.04, installing through pip as a normal user, it is installed to
~/.local/bin...
Exception messages in English?
...ially worked around. The Framework exception code loads the error messages from its resources, based on the current thread locale. In the case of some exceptions, this happens at the time the Message property is accessed.
For those exceptions, you can obtain the full US English version of the messa...
Hashset vs Treeset
...gineer I've ever known has asked me pointedly why I would use a TreeSet . From a CS background, I don't think it matters all that much which you use, and I don't care to mess around with hash functions and buckets (in the case of Java ).
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How to manually deprecate members
... tvOS, * for all, etc.).
You can also specify the version of the platform from which it was introduced, deprecated, obsoleted, renamed, and a message :
@available(iOS, deprecated:6.0)
func myFunc() {
// calling this function is deprecated on iOS6+
}
Or
@available(iOS, deprecated: 6.0, obsol...
Forward an invocation of a variadic function in C
...'macro magic', but you are guaranteed that calling the v... style function from a variadic function like this will work:
#include <stdarg.h>
int m_printf(char *fmt, ...)
{
int ret;
/* Declare a va_list type variable */
va_list myargs;
/* Initialise the va_list variable with...
How to initialize HashSet values by construction?
...would actually return the unmodifiable set introduced in Java 9 as evident from the statement set -> (Set<T>)Set.of(set.toArray()) in the source code.
One point to note is that the method Collections.unmodifiableSet() returns an unmodifiable view of the specified set (as per documentation)...
What is the difference between Int and Integer?
...r)
<interactive>:3:2:
No instance for (Bounded Integer) arising from a use of `minBound'
Possible fix: add an instance declaration for (Bounded Integer)
In the expression: minBound
In the expression: (minBound, maxBound) :: (Integer, Integer)
In an equation for `it':
...
git checkout tag, git pull fails in branch
...ame problem and fixed it with this command:
$ git push -u origin master
From the help file the -u basically sets the default for pulls:
-u, --set-upstream`
For every branch that is up to date or successfully pushed, add
upstream (tracking) reference, used by argument-less git-pull(1) and
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What is the easiest way to push an element to the beginning of the array?
... between shift and unshift as to which adds to the array and which removes from the array, drop an 'f' from the names mentally and you get an all-too-clear picture as to the direction. (And then you have to remember that these methods don't work on the "end" of the array. ;)
– ...