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Android emulator-5554 offline

I'm having a problem with emulator-5554, it keeps telling me it is offline. 37 Answers ...
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What is the difference between setUp() and setUpClass() in Python unittest?

What is the difference between setUp() and setUpClass() in the Python unittest framework? Why would setup be handled in one method over the other? ...
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MySQL “incorrect string value” error when save unicode string in Django

... None of these answers solved the problem for me. The root cause being: You cannot store 4-byte characters in MySQL with the utf-8 character set. MySQL has a 3 byte limit on utf-8 characters (yes, it's wack, nicely summed up by a Django developer here) To solve this you need to: Chang...
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Passing additional variables from command line to make

Can I pass variables to a GNU Makefile as command line arguments? In other words, I want to pass some arguments which will eventually become variables in the Makefile. ...
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Percentage width child element in absolutely positioned parent on Internet Explorer 7

I have an absolutely positioned div containing several children, one of which is a relatively positioned div . When I use a percentage-based width on the child div , it collapses to 0 width on IE7, but not on Firefox or Safari. ...
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Is there a way to make text unselectable on an HTML page? [duplicate]

I'm building an HTML UI with some text elements, such as tab names, which look bad when selected. Unfortunately, it's very easy for a user to double-click a tab name, which selects it by default in many browsers. ...
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What is the default access specifier in Java?

I just started reading a Java book and wondered; which access specifier is the default one, if none is specified? 12 Answer...
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What exactly do “u” and “r” string flags do, and what are raw string literals?

While asking this question , I realized I didn't know much about raw strings. For somebody claiming to be a Django trainer, this sucks. ...
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Can we instantiate an abstract class?

During one of my interview, I was asked "If we can instantiate an abstract class?" 16 Answers ...
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get keys of json-object in JavaScript [duplicate]

I have a json-object in JavaScript and I want to get the used keys in it. My JavaScript-Code looks like this: 3 Answers ...