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Why is i++ not atomic?
...e fields. So unless you will treat every field as implicitly volatile once one thread has used the ++ operator on it, such an atomicity guaranty would not solve concurrent update issues. So why potentially wasting performance for something if it doesn’t solve the problem.
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Do you need to dispose of objects and set them to null?
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One remark regarding IDisposable. Failing to Dispose an object will generally not cause a memory leak on any well designed class. When working with unmanaged resources in C# you should have a finalizer that will still release...
Regex group capture in R with multiple capture-groups
...act group capture from a regular expression match? As far as I can tell, none of grep , grepl , regexpr , gregexpr , sub , or gsub return the group captures.
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To switch from vertical split to horizontal split fast in Vim
... it seems like you can drop the Ctrl-w t part because if you're already in one of only two windows, what's the point of making it current?
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Convert Set to List without creating new List
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We can use following one liner in Java 8:
List<String> list = set.stream().collect(Collectors.toList());
Here is one small example:
public static void main(String[] args) {
Set<String> set = new TreeSet<>();
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Same Navigation Drawer in different Activities
...he tutorial on the developer.android.com website. But now, I want to use one Navigation Drawer, i created in the NavigationDrawer.class for multiple Activities in my Application.
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Checking if an Android application is running in the background
By background, I mean none of the application's activities are currently visible to the user?
30 Answers
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Best way to make Java's modulus behave like it should with negative numbers?
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Cool, didn't know about that one. Java 8 definitively fixed a few PITA's.
– Franz D.
Jun 4 '18 at 12:57
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Use NUnit Assert.Throws method or ExpectedException attribute?
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The first allows you to test for more than one exception, with multiple calls:
Assert.Throws(()=>MethodThatThrows());
Assert.Throws(()=>Method2ThatThrows());
The second only allows you to test for one exception per test function.
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JPA getSingleResult() or null
... a primary key lookup technically there could be multiple results (even if one, both or the combination of your foreign keys or constraints makes this impossible in practice) so this is probably the more appropriate solution.
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