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Java 8 Streams - collect vs reduce
...t argument to the operator is the return value of the previous application and the second argument is the current stream element.
collect is an aggregation operation where a "collection" is created and each element is "added" to that collection. Collections in different parts of the stream are then...
Checkout one file from Subversion
....
But that might not be what you want. You might want to work on the file and check it back in, without having to download GB of junk you don't need.
If you have Subversion 1.5+, then do a sparse checkout:
svn checkout <url_of_big_dir> <target> --depth empty
cd <target>
svn up &...
What does the 'static' keyword do in a class?
...n the example given, main does not know which instance of the Hello class (and therefore which instance of the Clock class) it should refer to. static members can only refer to static members. Instance members can, of course access static members.
Side note: Of course, static members can access ins...
When correctly use Task.Run and when just async-await
...ait Task.Run(() => DoWork());
Methods that are a mixture of CPU-bound and I/O-bound should have an Async signature with documentation pointing out their CPU-bound nature:
// Documentation: This method is CPU-bound.
Task DoWorkAsync();
Which you would also call using Task.Run (since it is par...
Bootstrap NavBar with left, center or right aligned items
...te a navigation bar that has Logo A on the left, menu items in the center, and Logo B on the right?
10 Answers
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How to iterate through range of Dates in Java?
...t I need to perform a set of actions through range of dates, given a start and end date.
Please provide me guidance to achieve this using Java.
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What is a deadlock?
...s try to access the same resource at the same time.
One process loses out and must wait for the other to finish.
A deadlock occurs when the waiting process is still holding on to another resource that the first needs before it can finish.
So, an example:
Resource A and resource B are used by pro...
What's the safest way to iterate through the keys of a Perl hash?
...ng each may in some way have unintended side effects. So, is that true, and is one of the two following methods best, or is there a better way?
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How to use enum values in f:selectItem(s)
... more flexible considering what happens if the order of the enums changes, and if the list was large? And could I do this better? And is it possible to automatically "select" the item that the question have?
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How do I get the width and height of a HTML5 canvas?
How can i get the width and height of the canvas element in JavaScript?
8 Answers
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