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Which regular expression operator means 'Don't' match this character?
...h any three-letter string except foo and bar:
(?!foo|bar).{3}
or
.{3}(?<!foo|bar)
Also, a correction for you: *, ? and + do not actually match anything. They are repetition operators, and always follow a matching operator. Thus, a+ means match one or more of a, [a-c0]+ means match one or more...
How to hide soft keyboard on android after clicking outside EditText?
...recursion.
if (view instanceof ViewGroup) {
for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
View innerView = ((ViewGroup) view).getChildAt(i);
setupUI(innerView);
}
}
}
That is all, just call this method after you setContentView in ...
What is the difference between task and thread?
... differently, nobody can agree on a precise definition.) Basically, a Task<T> "promises" to return you a T, but not right now honey, I'm kinda busy, why don't you come back later?
A Thread is a way of fulfilling that promise. But not every Task needs a brand-new Thread. (In fact, creating a t...
Android: show soft keyboard automatically when focus is on an EditText
...ou can't get the focus right, take a look at your XML! If you see the tag <requestFocus></requestFocus> in there - remove it. It seems like the tag will give focus to the EditText, and then your listener will not be fired as the EditText already has focus.
– Ted
...
How to add leading zeros?
..., so let's try a harder example of making powers of 10 width 8 too.
anim <- 25499:25504
x <- 10 ^ (0:5)
paste (and it's variant paste0) are often the first string manipulation functions that you come across. They aren't really designed for manipulating numbers, but they can be used for t...
Github Push Error: RPC failed; result=22, HTTP code = 413
...d LimitRequestBody 52428800 ( changing the value to your needs ) inside a <Directory /> block. Doing this you can limit the request of the whole server filesystem, just a single Virtual Host or a directory.
I hope this helps.
...
How to convert array values to lowercase in PHP?
...
For multi-dimensional arrays, use array_walk_recursive(). Also mb_strtolower() because the World is multilingual.
– kodeart
Jun 21 '19 at 9:57
...
How do I turn a python datetime into a string, with readable format date?
...Andre", datetime.now())
Compare the above with the following strftime() alternative...
>>>"{} today's date is {}".format("Andre", datetime.now().strftime("%B %d, %Y"))
Moreover, the following is not going to work...
>>>datetime.now().strftime("%s %B %d, %Y" % "Andre")
Traceba...
How to avoid null checking in Java?
...hly-underused Java feature that was added in 1.4. The syntax is:
assert <condition>
or
assert <condition> : <object>
where <condition> is a boolean expression and <object> is an object whose toString() method's output will be included in the error.
An assert sta...
Is std::unique_ptr required to know the full definition of T?
...program will silently leak memory as ~A() won't be called.
Using auto_ptr<A> in the above example doesn't help. You still get the same undefined behavior as if you had used a raw pointer.
Nevertheless, using incomplete classes in certain places is very useful! This is where shared_ptr and un...