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Predicate in Java
...ode which uses Predicate in Java. I have never used Predicate . Can someone guide me to any tutorial or conceptual explanation of Predicate and its implementation in Java?
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Does Java read integers in little endian or big endian?
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I'm not at my linux box now but is htons one of the standard libs?
– hhafez
Dec 12 '08 at 10:46
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How to read a single character from the user?
Is there a way of reading one single character from the user input? For instance, they press one key at the terminal and it is returned (sort of like getch() ). I know there's a function in Windows for it, but I'd like something that is cross-platform.
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How can I export the schema of a database in PostgreSQL?
...r schema include patterns to
match at least one entity each
--use-set-session-authorization
use SET SESSION AUTHORIZATION commands instead of
ALTER OWNER commands to set ownership
Connection options:
-d...
Java's Virtual Machine and CLR
...mentations (and in my opinion: yes, they're both "virtual machines").
For one thing, they're both stack-based VM's, with no notion of "registers" like we're used to seeing in a modern CPU like the x86 or PowerPC. The evaluation of all expressions ((1 + 1) / 2) is performed by pushing operands onto ...
How do you determine the ideal buffer size when using FileInputStream?
... generally larger than (or equal to) the disk block size. This means that one of your stream reads could result in multiple disk block reads - but those reads will always use a full block - no wasted reads.
Now, this is offset quite a bit in a typical streaming scenario because the block that is r...
How do I sort an NSMutableArray with custom objects in it?
...rtDescriptor]];
You can easily sort by multiple keys by adding more than one to the array. Using custom comparator-methods is possible as well. Have a look at the documentation.
Blocks (shiny!)
There's also the possibility of sorting with a block since Mac OS X 10.6 and iOS 4:
NSArray *sortedAr...
What is the difference between LR, SLR, and LALR parsers?
...ts with the same token T. If the parser is an SLR parser, there is at most one reduction rule for the state and so the reduction action can be done blindly without searching to see which reduction applies. It is useful for an SLR parser to know if there is a reduction or not; this is easy to tell ...
Why does volatile exist?
...rdware managed 16 bit value as a semaphore to know when the other guy was done. Essentially we did this:
void waitForSemaphore()
{
volatile uint16_t* semPtr = WELL_KNOWN_SEM_ADDR;/*well known address to my semaphore*/
while ((*semPtr) != IS_OK_FOR_ME_TO_PROCEED);
}
Without volatile, the opt...
Bash foreach loop
... is a file name.
How can I read this file and display the content for each one.
7 Answers
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