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Why is String immutable in Java?
...rrency: making String immutable automatically makes them thread safe thereby solving the synchronization issues.
Caching: when compiler optimizes your String objects, it sees that if two objects have same value (a="test", and b="test") and thus you need only one string object (for both a and b, the...
C state-machine design [closed]
...EV_MOUSEMOVE 5001
Then you define all the functions that are called by the transitions:
static int GotKey (void) { ... };
static int FsmError (void) { ... };
All these function are written to take no variables and return the new state for the state machine. In this example global variables...
Can I implement an autonomous `self` member type in C++?
...alking about an inelegant language feature (or misfeature, even deficiency by some strict measures).
– Sz.
Jul 25 '19 at 12:07
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ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'db'
... in bash, not at the MySQL command-line.
If you are in mysql, you can exit by typing exit.
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How do you unit test private methods?
...poses methods marked as internal and not those marked private as requested by the OP (and the reason I landed here). I guess I need to continue using PrivateObject as answered by Seven?
– Darren Lewis
May 25 '11 at 13:34
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How to convert floats to human-readable fractions?
... = a1 + 1/(a2 + 1/(a3 + 1/(a4 + ...)))
** then best approximation is found by truncating this series
** (with some adjustments in the last term).
**
** Note the fraction can be recovered as the first column of the matrix
** ( a1 1 ) ( a2 1 ) ( a3 1 ) ...
** ( 1 0 ) ( 1 0 ) ( 1 0 )
** Instead of...
ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
... far as the operating
system is concerned, are contiguous
sequences of bytes. It's no surprise
then that only byte buffers are
eligible to participate in I/O
operations. Also recall that the
operating system will directly access
the address space of the process, in
this case the JVM...
Correct owner/group/permissions for Apache 2 site files/folders under Mac OS X?
...R g+rx ~/my/web/root (all web content is now readable/executable/enterable by _www)
All other solutions leave files open to other local users (who are part of the "staff" group as well as obviously being in the "o"/others group). These users may then freely browse and access DB configurations, so...
Reusing output from last command in Bash
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You can save yourself from typing $(your_cmd) by using backticks: `your_cmd` According to the Gnu Bash manual they are functionally identical. Of course this is also subject to the warning raised by @memecs
– user2065875
Apr 20 '15 ...
What's the meaning of 'origin' in 'git push origin master'
...ut local branch (i.e. from your file system) to the remote repo identified by the name origin on its remote branch named master.
– skuro
Nov 16 '16 at 13:42
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