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When should TaskCompletionSource be used?
AFAIK, all it knows is that at some point, its SetResult or SetException method is being called to complete the Task<T> exposed through its Task property.
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Filter Java Stream to 1 and only 1 element
I am trying to use Java 8 Stream s to find elements in a LinkedList . I want to guarantee, however, that there is one and only one match to the filter criteria.
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The Guava library: What are its most useful and/or hidden features? [closed]
I have had a quick scan of the Guava API and the new collection types it provides( Multimap and BiMap for example appear useful) and I am thinking of including the library in the project(s) I work on.
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Reversing a linked list in Java, recursively
I have been working on a Java project for a class for a while now. It is an implementation of a linked list (here called AddressList , containing simple nodes called ListNode ). The catch is that everything would have to be done with recursive algorithms. I was able to do everything fine sans one ...
Textarea onchange detection
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You will need to use onkeyup and onchange for this. The onchange will prevent context-menu pasting, and the onkeyup will fire for every keystroke.
See my answer on How to impose maxlength on textArea for a code sample.
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Check if application is on its first run [duplicate]
...wing is an example of using SharedPreferences to achieve a 'first run' check.
public class MyActivity extends Activity {
SharedPreferences prefs = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Perhaps set co...
Return anonymous type results?
... };
return result;
}
It means you have an extra class, but it's quick and easy to code, easily extensible, reusable and type-safe.
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Is it possible in Java to catch two exceptions in the same catch block? [duplicate]
...tch two exceptions because they require the same handling logic. I would like to do something like:
6 Answers
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Mismatched anonymous define() module
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Like AlienWebguy said, per the docs, require.js can blow up if
You have an anonymous define ("modules that call define() with no string ID") in its own script tag (I assume actually they mean anywhere in global scope)
You hav...
How to change a span to look like a pre with CSS?
...change a <span> tag (or <div> ) to preformat its contents like a <pre> tag would using only CSS?
7 A...