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Java Enum definition

...? By making the type argument the new type itself. So if I've got an enum called StatusCode, it would be equivalent to: public class StatusCode extends Enum<StatusCode> Now if you check the constraints, we've got Enum<StatusCode> - so E=StatusCode. Let's check: does E extend Enum<S...
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Where to place and how to read configuration resource files in servlet based application?

... It's your choice. There are basically three ways in a Java web application archive (WAR): 1. Put it in classpath So that you can load it by ClassLoader#getResourceAsStream() with a classpath-relative path: ClassLoader classLoader = Thread.currentThread().ge...
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Write a program to find 100 largest numbers out of an array of 1 billion numbers

...gh the billion numbers, whenever you encounter a number greater than the smallest number in the queue (the head of the queue), remove the head of the queue and add the new number to the queue. EDIT: as Dev noted, with a priority queue implemented with a heap, the complexity of insertion to queue is...
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Java Reflection Performance

Does creating an object using reflection rather than calling the class constructor result in any significant performance differences? ...
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Difference between decimal, float and double in .NET?

...n a decimal form, and expect exact results in decimal representations; not all decimal numbers are exactly representable in binary floating point – 0.1, for example – so if you use a binary floating point value you'll actually get an approximation to 0.1. You'll still get approximations when usi...
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What's the difference between the various methods to get a Context?

...ion about contexts as well: In a regular Android application, you usually have two kinds of Context, Activity and Application. Reading the article a little bit further tells about the difference between the two and when you might want to consider using the application Context (Activity.get...
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Using a 'using alias = class' with generic types? [duplicate]

... Disappointing answer but upvoting all the same (since the answer is correct and relevant). :-/ – BrainSlugs83 Aug 30 '14 at 3:26 13 ...
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What is the Python 3 equivalent of “python -m SimpleHTTPServer”

...as been merged into http.server in Python 3.0. The 2to3 tool will automatically adapt imports when converting your sources to 3.0. So, your command is python -m http.server, or depending on your installation, it can be: python3 -m http.server ...
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Find out whether radio button is checked with JQuery?

..."it's checked"); } - you forgot the jQuery $ sign and then need to wrap it all in some more parenthesis. – zuallauz Nov 2 '11 at 8:28 2 ...
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How to store arrays in MySQL?

...raberry" 2 | "banana" 2 | "apple" When you want to retrieve a person and all of their fruit you can do something like this: SELECT p.*, f.* FROM person p INNER JOIN person_fruit pf ON pf.person_id = p.id INNER JOIN fruits f ON f.fruit_name = pf.fruit_name ...