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Dependency injection through constructors or property setters?

I'm refactoring a class and adding a new dependency to it. The class is currently taking its existing dependencies in the constructor. So for consistency, I add the parameter to the constructor. Of course, there are a few subclasses plus even more for unit tests, so now I am playing the game of go...
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NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder

...e is an issue with the Android appcompat v7 library on Samsung devices running Android 4.2. I keep getting crashes with the following stack trace in my Developer Console: ...
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Custom circle button

...n and I need it to be circle. How can I create a circle button? I do not think that be possible with draw9patch. 8 Answers ...
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Java “params” in method signature?

In C#, if you want a method to have an indeterminate number of parameters, you can make the final parameter in the method signature a params so that the method parameter looks like an array but allows everyone using the method to pass as many parameters of that type as the caller wants. ...
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What is the fastest way to get the value of π?

I'm looking for the fastest way to obtain the value of π, as a personal challenge. More specifically, I'm using ways that don't involve using #define constants like M_PI , or hard-coding the number in. ...
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How do I pass an object from one activity to another on Android? [duplicate]

I need to be able to use one object in multiple activities within my app, and it needs to be the same object. What is the best way to do this? ...
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Why does `True == False is False` evaluate to False? [duplicate]

... Because in fact that's a chained comparison, so True == False is False is equivalent to (True == False) and (False is False) This can be surprising in this case, but lets you write 1 <= x < 4 unlike in other languages lik...
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Which is better option to use for dividing an integer number by 2?

Which of the following techniques is the best option for dividing an integer by 2 and why? 23 Answers ...
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qmake: could not find a Qt installation of ''

I have a software in ubuntu that requires me to run qmake to generate the Makefile. 10 Answers ...
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How do I declare a namespace in JavaScript?

How do I create a namespace in JavaScript so that my objects and functions aren't overwritten by other same-named objects and functions? I've used the following: ...