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Why does the default parameterless constructor go away when you create one with parameters

...ass, I most likely want to be able to instantiate that class. In order to allow that, the compiler must add a parameterless constructor, which will have no effect but to allow instantiation. This means that I don't have to include an empty constructor in my code just to make it work. If I've defin...
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Representing Directory & File Structure in Markdown Syntax [closed]

...se ASCII to build the structures, so your example structure becomes . +-- _config.yml +-- _drafts | +-- begin-with-the-crazy-ideas.textile | +-- on-simplicity-in-technology.markdown +-- _includes | +-- footer.html | +-- header.html +-- _layouts | +-- default.html | +-- post.html +-- _po...
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How to change context root of a dynamic web project in Eclipse?

...hought I'd answer anyway. Some of these answers give workarounds. What actually must happen is that you clean and re-publish your project to "activate" the new URI. This is done by right-clicking your server (in the Servers view) and choosing Clean. Then you start (or restart it). Most of the other ...
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Given two directory trees, how can I find out which files differ by content?

If I want find the differences between two directory trees, I usually just execute: 10 Answers ...
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Get file size, image width and height before upload

... when the value of i is alerted in the callback function reader.onload it shows a random increment! e.g. for 4 files the value as alerted was 0 3 2 1 . Can any one explain that? – freerunner Mar 2 '14 at 11:16 ...
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How to find out if an item is present in a std::vector?

All I want to do is to check whether an element exists in the vector or not, so I can deal with each case. 18 Answers ...
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Converting String to Int with Swift

The application basically calculates acceleration by inputting Initial and final velocity and time and then use a formula to calculate acceleration. However, since the values in the text boxes are string, I am unable to convert them to integers. ...
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AngularJS - convert dates in controller

... All solutions here doesn't really bind the model to the input because you will have to change back the dateAsString to be saved as date in your object (in the controller after the form will be submitted). If you don't need t...
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Using isKindOfClass with Swift

... Another approach using the new Swift 2 syntax is to use guard and nest it all in one conditional. guard let touch = object.AnyObject() as? UITouch, let picker = touch.view as? UIPickerView else { return //Do Nothing } //Do something with picker ...
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Detect if Android device has Internet connection

...onseCode() == 200); } catch (IOException e) { Log.e(LOG_TAG, "Error checking internet connection", e); } } else { Log.d(LOG_TAG, "No network available!"); } return false; } Of course you can substitute the http://www.google.com URL for any other serv...