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Java executors: how to be notified, without blocking, when a task completes?

... Define a callback interface to receive whatever parameters you want to pass along in the completion notification. Then invoke it at the end of the task. You could even write a general wrapper for Runnable tasks, and submit these to ExecutorService. Or, see below...
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Python recursive folder read

... Superb, lots of prints to understand what's going on and it works perfectly. Thanks! +1 – Brock Woolf Feb 6 '10 at 9:52 ...
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Ng-model does not update controller value

... This only works one-way... what if you want to change the value of searchText? – cdmckay Jul 8 '13 at 17:04 199 ...
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How do I test an AngularJS service with Jasmine?

...es this injector itself in your applications, too, to tell the application what is available. However, it can be called in more than one place, and it can also be called implicitly instead of explicitly. You'll notice in my example spec test file below, the beforeEach() block implicitly calls inject...
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How to Get a Layout Inflater Given a Context?

... What's the difference between LayoutInflater.from(Context ctx) and this getSustemService(...) ? – Teo Choong Ping Mar 20 '12 at 10:40 ...
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Remove all the elements that occur in one list from another

...ng this sort of thing extremely easy. The following statement does exactly what you want and stores the result in l3: l3 = [x for x in l1 if x not in l2] l3 will contain [1, 6]. share | improve t...
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Ruby on Rails - Import Data from a CSV file

...looked on official Ruby and Rails sites, API docs). E.g. I couldn't find what object returns CSV.parse(), I didn't find to_hash() and with_indifferent_access() methods... Maybe I looked in wrong place or missed some basic principle on how to traverse Ruby & Rails API docs. Can anyone share ...
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Check if application is on its first run [duplicate]

... Hi what if the user clears the app data ? The shared preference data will be cleared right ? – ANUJ GUPTA Mar 7 '18 at 7:08 ...
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How to run a shell script at startup

... running stop_my_app) I'd have to do so with sudo, no? Also, I'm wondering what exactly is the function of the trailing ampersand(?). – meetamit Oct 19 '12 at 14:42 ...
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How to fix getImageData() error The canvas has been tainted by cross-origin data?

... What if it's a local file, and your app doesn't use the internet at all? Like an android webview app and the image is just in the same folder as the html file. This doesn't solve it. – Curtis ...