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Likelihood of collision using most significant bits of a UUID in Java
If I'm using Long uuid = UUID.randomUUID().getMostSignificantBits() how likely is it to get a collision. It cuts off the least significant bits, so there is a possibility that you run into a collision, right?
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What is causing “Unable to allocate memory for pool” in PHP?
... the people having this problem, please specify you .ini settings. Specifically your apc.mmap_file_mask setting.
For file-backed mmap, it should be set to something like:
apc.mmap_file_mask=/tmp/apc.XXXXXX
To mmap directly from /dev/zero, use:
apc.mmap_file_mask=/dev/zero
For POSIX-compliant...
Where does the “flatmap that s***” idiomatic expression in Scala come from?
...at you can replace a lot of tedious if/then/else code you would write with calls to flatMap (and other higher order functions).
This is especially true for Options (see http://tonymorris.github.io/blog/posts/scalaoption-cheat-sheet/)
But it applies to other monads as well (although I have to admi...
jQuery: how to get which button was clicked upon form submission?
...ttons in case the form submit is handled in an ajax way and you want to avoid getting previsouly clicked button again.
– Chandu
Apr 19 '11 at 19:45
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Kill a Process by Looking up the Port being used by it from a .BAT
...ms= " %%P IN ('netstat -a -n -o ^| findstr :8080') DO @ECHO TaskKill.exe /PID %%P
When you're confident in your batch file, remove @ECHO.
FOR /F "tokens=4 delims= " %%P IN ('netstat -a -n -o ^| findstr :8080') DO TaskKill.exe /PID %%P
Note that you might need to change this slightly for differe...
Call by name vs call by value in Scala, clarification needed
As I understand it, in Scala, a function may be called either
16 Answers
16
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How to generate the JPA entity Metamodel?
...cessor.
Hibernate as a dependency
<dependency>
<groupId>org.hibernate.orm</groupId>
<artifactId>hibernate-jpamodelgen</artifactId>
<version>${version.hibernate-jpamodelgen}</version>
<scope>provided</scope>
<...
java: Class.isInstance vs Class.isAssignableFrom
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Okay. My original point was that the calls are not exactly symmetric to each other, but having re-read your answer you never made this assertion so you're right.
– Gili
Mar 2 '14 at 16:28
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How do I check for a network connection?
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This is great, but is not technically about the availability of a 'network' but more 'do I have internet connectivity via http?' You can have perfect network connections but no connectivity to the internet, for instance on a stand-alone lan. See for more i...
Static link of shared library function in gcc
How can I link a shared library function statically in gcc?
6 Answers
6
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