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How to obtain Signing certificate fingerprint (SHA1) for OAuth 2.0 on Android?

... MD5 appears in logcat now (not in the window during creation). – Tool Aug 9 '13 at 18:16 4 ...
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var self = this?

...// "this" is different here! --- but we don't care! console.log(abc); // now it is the right object! function qwe(){ // "this" is different here too! --- but we don't care! console.log(abc); // it is the right object here too! } ... }; this is not unique in this respect: arguments ...
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explicit casting from super class to subclass

... you're essentially telling the compiler "trust me. I'm a professional, I know what I'm doing and I know that although you can't guarantee it, I'm telling you that this animal variable is definitely going to be a dog." Since the animal isn't actually a dog (it's an animal, you could do Animal anima...
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When restoring a backup, how do I disconnect all active connections?

...nd select 'Activity Monitor'. When this opens, expand the Processes group. Now use the drop-down to filter the results by database name. Kill off the server connections by selecting the right-click 'Kill Process' option. sh...
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Sending a message to nil in Objective-C

...ize(); ++i){ System.out.println(list.get(i).toString()); } } Now, if you call that method like so: someObject.foo(NULL); you're going to probably get a NullPointerException when it tries to access list, in this case in the call to list.size(); Now, you'd probably never call someObject....
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Issue with virtualenv - cannot activate

...cannot. It might just be syntax or folder location, but I am stumped right now. 21 Answers ...
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Can you build dynamic libraries for iOS and load them at runtime?

... Anybody know why that is? To me it just seems completely insane. – Erik de Castro Lopo Apr 29 '11 at 3:24 74 ...
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How to unit test an object with database queries

...r { public Foo[] GetAllFoos() { return Foo.GetAll(); } } Now in your unit test, you create a mock of FooDataProvider, which allows you to call the method GetAllFoos without having to actually hit the database. class BarTests { public TestGetAllFoos() { // here we set u...
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Does ruby have real multithreading?

I know about the "cooperative" threading of ruby using green threads . How can I create real "OS-level" threads in my application in order to make use of multiple cpu cores for processing? ...
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How to calculate time difference in java?

... java.time.Duration; import java.time.Instant; ... Instant start = Instant.now(); //your code Instant end = Instant.now(); Duration timeElapsed = Duration.between(start, end); System.out.println("Time taken: "+ timeElapsed.toMillis() +" milliseconds"); ...