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Overload with different return type in Java?

Why is it not possible to overload a function just by changing the return type? Will that change in a future version of Java? ...
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What is an index in SQL?

What is an index in SQL? Can you explain or reference to understand clearly? 11 Answers ...
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Declaring functions in JavaScript [duplicate]

... I am on different opinion with most of the people here. Technically this syntax may mean the same for declaring functions both ways (I stand incorrect on my last statement. I read up on a diff post why they are technically diff and I'll add in the end, why) ; but the way they play a role in evo...
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Impossible to make a cached thread pool with a size limit?

... size, it creates new threads. If the core size has been reached and there is no idle threads, it queues tasks. If the core size has been reached, there is no idle threads, and the queue becomes full, it creates new threads (until it reaches the max size). If the max size has been reached, there is ...
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How to check Google Play services version?

In my application, I need to check Google Play services version (which is installed in user's device). Is it possible ? And if yes, how can I do that? I searched Google but I could not find anything! ...
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PHP “php://input” vs $_POST

... when interacting with Ajax requests from JQuery. What I do not understand is the benefits of using this vs the global method of $_POST or $_GET . ...
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Difference between open and codecs.open in Python

... Since Python 2.6, a good practice is to use io.open(), which also takes an encoding argument, like the now obsolete codecs.open(). In Python 3, io.open is an alias for the open() built-in. So io.open() works in Python 2.6 and all later versions, including Pyt...
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Mipmap drawables for icons

... There are two distinct uses of mipmaps: For launcher icons when building density specific APKs. Some developers build separate APKs for every density, to keep the APK size down. However some launchers (shipped with some devices, or availa...
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Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]

In Rails we can do the following in case a value doesn't exist to avoid an error: 12 Answers ...
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How to use enums as flags in C++?

... nicely in C# via the [Flags] attribute, but what's the best way to do this in C++? 22 Answers ...