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Why does Java allow us to compile a class with a name different than the file name?

...nvention, the classpath class loader might need to open and parse files in order to find classes – Andrei Nicusan Nov 25 '13 at 14:45 ...
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What is a non-capturing group in regular expressions?

...m grabbing comma-separated last & first names and then reversing their order (thanks to named groups)... regexhero.net/tester/?id=16892996-64d4-4f10-860a-24f28dad7e30 – Steve Wortham Aug 19 '10 at 15:43 ...
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Go build: “Cannot find package” (even though GOPATH is set)

...ce isn't found there—it searches for src/widget inside each workspace in order. (a "workspace" is a path entry in your GOPATH: that variable can reference multiple paths for your 'src, bin, pkg' to be) (Original answer) You also should set GOPATH to ~/go, not GOROOT, as illustrated in "How to Wr...
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What is Java EE? [duplicate]

...rvlets and JSP and EJBs. Now-a-days it probably means Spring and Hibernate etc. Really what they are looking for is experience and understanding of the Java ecosystem, Servlet containers, JMS, JMX, Hibernate etc. and how they all fit together. Testing and source control would be an important ski...
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java.lang.RuntimeException: Unable to instantiate activity ComponentInfo

...fix the problem Once the jar was added to the build path, I had change the order on the Java Build Path > Order and Export tab - I set the JAR to the first item in the list (it was the last after the /src and /gen items). I then rebuilt and redeployed the app to my device - it worked as expected ...
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What is the point of “final class” in Java?

...e who is planning to obtain an Oracle Java Certification (such as 1Z0-808, etc.) should keep this in mind because there might be questions on this aspect on the exam... – Igor Soudakevitch Jun 17 '16 at 20:29 ...
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Elegant solution to duplicate, const and non-const, getters? [duplicate]

...Chances are that BigChunk needs to deference self, in which case the above order of definition isn't going to work very well, and some forward declarations will be needed to sort it out. Also, in order to avoid some numpty finding BigChunk in the header and deciding to instantiate and call it even ...
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Do I need elements in persistence.xml?

...e Java EE 5 tutorial: <persistence> <persistence-unit name="OrderManagement"> <description>This unit manages orders and customers. It does not rely on any vendor-specific features and can therefore be deployed to any persistence provider. ...
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How do I paste multi-line bash codes into terminal and run it all at once?

...iving... If you'd like to paste multiple lines from a website/text editor/etc., into bash, regardless of whether it's commands per line or a function or entire script... simply start with a ( and end with a ) and Enter, like in the following example: If I had the following blob function hello { ...
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Using .gitignore to ignore everything but specific directories

...t want WordPress core files, or your server-specific # configuration files etc., in your project's repository. You just don't. # # Solution: stick this file up your repository root (which it assumes is # also the WordPress root directory) and add exceptions for any plugins, # themes, and other direc...