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When do Java generics require
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First - I have to direct you to http://www.angelikalanger.com/GenericsFAQ/JavaGenericsFAQ.html -- she does an amazing job.
The basic idea is that you use
<T extends SomeClass>
when the actual parameter can be SomeClass or any subtype of it.
In your exam...
Script parameters in Bash
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How do I change bash history completion to complete what's already on the line?
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Change old commit message on Git
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Automatically plot different colored lines
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Why can't enum's constructor access static fields?
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How does facebook, gmail send the real time notification?
...pushes the message to clients.
Comparision between MQTT and HTTP: http://www.youtube.com/watch?v=-KNPXPmx88E
Note: my answers best fits for mobile devices.
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When do I need to use AtomicBoolean in Java?
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Understanding $.proxy() in jQuery
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How to display unique records from a has_many through relationship?
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