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ActiveMQ or RabbitMQ or ZeroMQ or [closed]
... you’ll have to study the 80 pages or so of the guide (which I recommend reading for anybody writing distributed system, even if you don’t use Zmq) before being able to do anything more complicated than sending messages between 2 peers.
ActiveMQ is in the middle ground. Like Zmq, it can be depl...
When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s
What are the advantages of using NoSQL databases? I've read a lot about them lately, but I'm still unsure why I would want to implement one, and under what circumstances I would want to use one.
...
Java - get pixel array from image
...ring[] args) throws IOException {
BufferedImage hugeImage = ImageIO.read(PerformanceTest.class.getResource("12000X12000.jpg"));
System.out.println("Testing convertTo2DUsingGetRGB:");
for (int i = 0; i < 10; i++) {
long startTime = System.nanoTime();
int[][] r...
How to get relative path from absolute path
...athTo(...) which I find easier to understand than an int where you need to read the documentation on what the int means.
– Daniel Rose
Jun 22 '10 at 6:32
4
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What are the effects of exceptions on performance in Java?
...jmp. That means all registers of the CPU are written to the stack (which already takes some time) and possibly some other data needs to be created... all this already happens in the try statement. The throw statement needs to unwind the stack and restore the values of all registers (and possible oth...
Factors in R: more than an annoyance?
...n be a pain, but my theory is that 90% of why they're a pain is because in read.table and read.csv, the argument stringsAsFactors = TRUE by default (and most users miss this subtlety). I say they are useful because model fitting packages like lme4 use factors and ordered factors to differentially fi...
Single Page Application: advantages and disadvantages [closed]
I've read about SPA and it advantages. I find most of them unconvincing. There are 3 advantages that arouse my doubts.
11 A...
When do you use Java's @Override annotation and why?
... One very real downside is that you make the code harder to read by littering it with snails. Perhaps this is a fault of my IDE, but I have experienced this myself.
– treat your mods well
Apr 28 '10 at 20:15
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Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...lds. Reordering the fields would make it impossible for C code to directly read or write the header (assuming the ZIP implementation would like to access the data directly):
struct __attribute__((__packed__)) LocalFileHeader {
uint32_t signature;
uint16_t minVersion, flag, method, modTime, ...
Trim last character from a string
...
"Hello! world!".TrimEnd('!');
read more
EDIT:
What I've noticed in this type of questions that quite everyone suggest to remove the last char of given string. But this does not fulfill the definition of Trim method.
Trim - Removes all occurrences o...