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JPA EntityManager: Why use persist() over merge()?
EntityManager.merge() can insert new objects and update existing ones.
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Random float number generation
How do I generate random floats in C++?
14 Answers
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What is the difference between integration and unit tests?
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ShellZero
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answered Sep 1 '08 at 19:33
Larry FoulkrodLarry Foulkrod
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How do browser cookie domains work?
Due to weird domain/subdomain cookie issues that I'm getting, I'd like to know how browsers handle cookies. If they do it in different ways, it would also be nice to know the differences.
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How to save username and password with Mercurial?
I used Mercurial in a personal project, and I have been typing my username and password every time I want to push something to the server.
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Virtual/pure virtual explained
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In a C++ class, virtual is the keyword which designates that, a method can be overridden (i.e. ...
How to delete images from a private docker registry?
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– Markus Lindberg
Apr 14 '16 at 7:32
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What are file descriptors, explained in simple terms?
...ited Feb 19 '15 at 22:55
Freedom_Ben
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answered Mar 10 '11 at 7:31
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