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Fastest way to check if string contains only digits
...ew SortedSet<string>(); //s = string.Concat(Enumerable.Range(0, 127).Select(i => ((char)i ^ '0') < 10 ? 1 : 0));
w.Restart(); for (int i = 0; i < r; i++) b = s.All(char.IsDigit); w.Stop(); ss.Add(w.Elapsed + ".All .IsDigit");
w.Restart(); for (int i = 0; i < r; i++) b = s....
Use of Application.DoEvents()
...d gets any paint requests delivered. The problem however is that it isn't selective. It not only dispatches paint messages, it delivers everything else as well.
And there's a set of notifications that cause trouble. They come from about 3 feet in front of the monitor. The user could for example...
Design Pattern for Undo Engine
...a virtual method implementation.
To do aggregate actions (e.g. user Shift-Selects a load of objects to do an operation on, such as delete, rename, change attribute), your code creates a new Undo stack as a single memento, and passes that to the actual operation to add the individual operations to. ...
How to copy Java Collections list
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As hoijui mentions. The selected answer from Stephen Katulka contains a comment about Collections.copy that is incorrect. The author probably accepted it because the first line of code was doing the copy that he wanted. The additional call to Collec...
Animated loading image in picasso
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Use romannurik.github.io/AndroidAssetStudio/index.html (select "Launcher icon generator") to create mdpi, hdpi, xhdpi, etc.
– CoolMind
Jan 10 '18 at 8:40
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How do you find all subclasses of a given class in Java?
...and fields) in memory, for all classes on the classpath, or for classes in selected packages, and you can query this class graph however you want. ClassGraph supports more classpath specification mechanisms and classloaders than any other scanner, and also works seamlessly with the new JPMS module s...
Colored logcat in android studio by colorpid
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Warn : BBB529
Error : FF6B68
Assert : 9876AA
Only show logcat from selected process is supported by default feature at AndroidStudio. If you are not satisfied with current customizations you need to continue to use your favorite shell with JakeWharton srcipt as for now.
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How do I solve the INSTALL_FAILED_DEXOPT error?
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Restarting the emulator from the Android SDK and AVD Manager and selecting the option Wipe User Data has solved this problem for me.
You can find the option as highlighted in the below given image:
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alternatives to REPLACE on a text or ntext datatype
...g SQL Server 2005/2008, you can use the following code (taken from here):
select cast(replace(cast(myntext as nvarchar(max)),'find','replace') as ntext)
from myntexttable
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What are the key differences between Scala and Groovy? [closed]
...ts instead. Groovy uses the static concept.
Scala does not have built in selection of arithmetic operators in quite the way that Groovy does. In Scala you can name methods very flexibly.
Groovy has the elvis operator for dealing with null. Scala programmers prefer to use Option types to using n...