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How to reset Android Studio

... I only know how to do this on Windows (but it should be similar on any OS, you will just need to find the correct location yourself - google search would help with that). On Windows: Go to your User Folder - on Windows 7/8 this w...
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What is an efficient way to implement a singleton pattern in Java? [closed]

...s to be final. In this case, I've used the final keyword to let the users know it is final. Then you need to make the constructor private to prevent users to create their own Foo. Throwing an exception from the constructor prevents users to use reflection to create a second Foo. Then you create a pr...
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Scala actors: receive vs react

...es something, a thread gets allocated to it, and it is initialized in it. Now, the initialization part is important. A receiving thread is expected to return something, a reacting thread is not. So the previous stack state at the end of the last react can be, and is, wholly discarded. Not needing t...
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How to remove convexity defects in a Sudoku square?

...a mask for the sudoku grid: mask = FillingTransform[largestComponent] Now, I can use a 2nd order derivative filter to find the vertical and horizontal lines in two separate images: lY = ImageMultiply[MorphologicalBinarize[GaussianFilter[srcAdjusted, 3, {2, 0}], {0.02, 0.05}], mask]; lX = Image...
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How to add property to a class dynamically?

... I suppose I should expand this answer, now that I'm older and wiser and know what's going on. Better late than never. You can add a property to a class dynamically. But that's the catch: you have to add it to the class. >>> class Foo(object): ... ...
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How do you follow an HTTP Redirect in Node.js?

... This is now here: github.com/request/request/blob/… – Adrian Lynch Mar 9 '16 at 16:51 1 ...
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When is localStorage cleared?

... localStorage is also known as Web Storage, HTML5 Storage, and DOM Storage (these all mean the same thing). localStorage is similar to sessionStorage, except that data stored in localStorage has no expiration time, while data stored in sessionStor...
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Make header and footer files to be included in multiple html pages

...l <a href="http://www.google.com">click here for google</a> Now, when you visit index.html, you should be able to click the link tags. share | improve this answer | ...
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Remove Elements from a HashSet while Iterating [duplicate]

...et.removeIf((Integer element) -> { return (element % 2 == 0); }); Now your set contains only odd values. share | improve this answer | follow | ...
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Can JavaScript connect with MySQL?

...e if such libraries exist, but they are possible. EDIT: Since writing, we now have MySQL Cluster: The MySQL Cluster JavaScript Driver for Node.js is just what it sounds like it is – it’s a connector that can be called directly from your JavaScript code to read and write your data. As it acc...