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What's the difference between JPA and Hibernate? [closed]
...e has more features than JPA 2. But from a practical point of view, what really is the difference?
22 Answers
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How can I shuffle the lines of a text file on the Unix command line or in a shell script?
... well, you get the picture. It has been pointed out that sort -R doesn't really shuffle but instead sort items according to their hash value.
[Editor's note: sort -R almost shuffles, except that duplicate lines / sort keys always end up next to each other. In other words: only with unique input lin...
What is difference between XML Schema and DTD?
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So what are some of the other differences which might be especially important when we are converting a DTD? Let's take a look.
Typing
The most significant difference between DTDs and XML Schema is the capability to create and use datatypes in Schema in conjunction with element ...
How to read file contents into a variable in a batch file?
...variable – just like any other environment variable – it is one, after all:
%Build%
So to check for existence:
if exist \\fileserver\myapp\releasedocs\%Build%.doc ...
Although it may well be that no UNC paths are allowed there. Can't test this right now but keep this in mind.
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Init method in Spring Controller (annotation version)
...can have your class implement the InitializingBean interface to provide a callback function (afterPropertiesSet()) which the ApplicationContext will invoke when the bean is constructed.
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How to calculate “time ago” in Java?
In Ruby on Rails, there is a feature that allows you to take any Date and print out how "long ago" it was.
30 Answers
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Best way to reverse a string
... being far less readable, that may even be what Array.Reverse() uses internally.
– Nick Johnson
Oct 23 '08 at 13:18
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Cutting the videos based on start and end time using ffmpeg
... Because non-keyframes encode differences from other frames, they require all of the data starting with the previous keyframe.
With the mp4 container it is possible to cut at a non-keyframe without re-encoding using an edit list. In other words, if the closest keyframe before 3s is at 0s then it ...
boost Composite keys - C/C++ - 清泛网 - 专注C/C++及内核技术
... first key, then the second key if the first one is equal, etc. This order allows for partial searches where only the first keys are specified:
phonebook pb;
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// look for all Whites
std::pair<phonebook::iterator,phonebook::iterator> p=
pb.equal_range(boost::make_tuple(std::string("Whi...
Restful way for deleting a bunch of items
...because you don't need any redirects. Incorporating AJAX you could do this all without leaving the page.
– rojoca
Mar 15 '10 at 19:40
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