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Capturing Groups From a Grep RegEx
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I realize that an answer was already accepted for this, but from a "strictly *nix purist angle"...
What's the difference between JPA and Hibernate? [closed]
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So, when you are using Hibernate with JPA, the {java.persistence } annotations will work or you will have to use {org.hibernate} annotations?
– Bosco
Feb 11 '14 at 18:30
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Java or Python for Natural Language Processing [closed]
...now which programming language is better for natural language processing. Java or Python ? I have found lots of questions and answers regarding about it. But I am still lost in choosing which one to use.
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Java generics type erasure: when and what happens?
I read about Java's type erasure on Oracle's website .
7 Answers
7
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Tips for using Vim as a Java IDE? [closed]
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command to get help on java syntax highlighting. :help java.vim
– Michael Ekoka
Feb 8 '10 at 7:47
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Best way to store date/time in mongodb
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Dan Dascalescu
98.3k3636 gold badges263263 silver badges333333 bronze badges
answered Sep 23 '10 at 13:28
Niels van ...
How can I lock a file using java (if possible)
I have a Java process that opens a file using a FileReader. How can I prevent another (Java) process from opening this file, or at least notify that second process that the file is already opened? Does this automatically make the second process get an exception if the file is open (which solves my p...
Best approach for GPGPU/CUDA/OpenCL in Java?
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AFAIK, JavaCL / OpenCL4Java is the only OpenCL binding that is available on all platforms right now (including MacOS X, FreeBSD, Linux, Windows, Solaris, all in Intel 32, 64 bits and ppc variants, thanks to its use of JNA).
It has ...
Filtering a list based on a list of booleans
...i for (i, v) in zip(list_a, fil) if v] #winner
100000 loops, best of 3: 1.98 us per loop
>>> list_a = [1, 2, 4, 6]*100
>>> fil = [True, False, True, False]*100
>>> %timeit list(compress(list_a, fil)) #winner
10000 loops, best of 3: 24.3 us per loop
>>&...
Converting Secret Key into a String and Vice Versa
...ing and use it in a SecretKeySpec to rebuild your original SecretKey.
For Java 8
SecretKey to String:
// create new key
SecretKey secretKey = KeyGenerator.getInstance("AES").generateKey();
// get base64 encoded version of the key
String encodedKey = Base64.getEncoder().encodeToString(secretKey.ge...