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Is the ternary operator faster than an “if” condition in Java [duplicate]
...one to " if-conditional syndrome " which means I tend to use if conditions all the time. I rarely ever use the ternary operator. For instance:
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Could not insert new outlet connection [duplicate]
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See stas answer below... worked for me, and really simple.
– blackbox
Jun 19 '13 at 21:28
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grep using a character vector with multiple patterns
...w. So its a compress way to output something like A1 | A2 so if one wanted all conditions then the collapse would be with an & sign, cool thanks.
– Ahdee
Feb 23 '18 at 15:41
1
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How to prevent a dialog from closing when a button is clicked
...log. Every time no matter what the input is, the dialog should be automatically closed when I click on the "no" button. How can I disable this? By the way, I have used PositiveButton and NegativeButton for the button on dialog.
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Null or default comparison of generic argument in C#
...IEquatable<T> (without boxing) as well as object.Equals, and handles all the Nullable<T> "lifted" nuances. Hence:
if(EqualityComparer<T>.Default.Equals(obj, default(T))) {
return obj;
}
This will match:
null for classes
null (empty) for Nullable<T>
zero/false/etc for...
How is CountDownLatch used in Java Multithreading?
...or n threads, specified while creating the CountDownLatch.
Any thread, usually the main thread of the application, which calls CountDownLatch.await() will wait until count reaches zero or it's interrupted by another thread. All other threads are required to count down by calling CountDownLatch.coun...
What regular expression will match valid international phone numbers?
...e whether a phone number is valid before attempting to dial it. The phone call can go anywhere in the world.
23 Answers
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What are .dex files in Android?
...ystem) is that it does not use Java bytecode. Instead, a homegrown format called DEX was introduced and not even the bytecode instructions are the same as Java bytecode instructions.
Compiled Android application code file.
Android programs are compiled into .dex (Dalvik Executable) files, which ...
How do I get a background location update every n minutes in my iOS application?
...d with UIApplication:beginBackgroundTaskWithExpirationHandler:
When n is smaller than UIApplication:backgroundTimeRemaining it will work just fine. When n is larger, the location manager should be enabled (and disabled) again before there is no time remaining to avoid the background task being kille...
What is the benefit of using $() instead of backticks in shell scripts?
... 201112[0-9][0-9]*.txt | tail -1l) -print)
which will give you a list of all files in the /dir directory tree which have the same name as the earliest dated text file from December 2011 (a).
Another example would be something like getting the name (not the full path) of the parent directory:
pax...