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How should I have explained the difference between an Interface and an Abstract class?

...Implement the same default behavior here // that is shared by all subclasses. } // Each subclass needs to provide their own implementation of this only: public abstract void checkDBforUser(); } Now in each child class, we only need to implement one method - the method that i...
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java.lang.RuntimeException: Unable to instantiate activity ComponentInfo

...The manifest in the primary project had the proper activity definition and all of the appropriate properties I didn't have an abstract activity or any of the other gotchas I've seen on Stack Overflow pertaining to this problem. However, I still encountered the error described in the original post ...
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How to change the name of an iOS app?

...t name and change it directly in the target list. – hallski Apr 15 '11 at 8:12 10 @all there is a...
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Install Windows Service created in Visual Studio

...indows Service in Visual Studio 2010, I get the message stating to use InstallUtil and net start to run the service. 7 Answ...
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Easiest way to split a string on newlines in .NET?

...know of to split strings is with the Split method. However that will not allow me to (easily) split on a newline, so what is the best way to do it? ...
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What is the difference between an IntentService and a Service? [duplicate]

...as Intents) on demand. Clients send requests through startService(Intent) calls; the service is started as needed, handles each Intent in turn using a worker thread, and stops itself when it runs out of work. Refer this doc - http://developer.android.com/reference/android/app/IntentService.html ...
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Get current time in seconds since the Epoch on Linux, Bash

... So far, all the answers use the external program date. Since Bash 4.2, printf has a new modifier %(dateformat)T that, when used with argument -1 outputs the current date with format given by dateformat, handled by strftime(3) (man 3...
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What's a good (free) visual merge tool for Git? (on windows) [closed]

...on is free), try the tool that is shipped with it: vsDiffMerge.exe. It's really awesome and easy to use. share | improve this answer | follow | ...
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How many classes should I put in one file? [closed]

... A Python file is called a "module" and it's one way to organize your software so that it makes "sense". Another is a directory, called a "package". A module is a distinct thing that may have one or two dozen closely-related classes. The tri...
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How to name factory like methods?

...uess that most factory-like methods start with create . But why are they called " create "? Why not " make ", " produce ", " build ", " generate " or something else? Is it only a matter of taste? A convention? Or is there a special meaning in "create"? ...