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Why doesn't Java offer operator overloading?
...ix object":
// C++ YMatrix matrix implementation on CodeProject
// http://www.codeproject.com/KB/architecture/ymatrix.aspx
// A, B, C, D, E, F are Matrix objects;
E = A * (B / 2) ;
E += (A - B) * (C + D) ;
F = E ; // deep copy of the matrix
// Java JAMA matrix implementation (se...
Why can't static methods be abstract in Java?
...
Because "abstract" means: "Implements no functionality", and "static" means: "There is functionality even if you don't have an object instance". And that's a logical contradiction.
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Check if a number has a decimal place/is a whole number
...ber and compare it to zero like so:
function Test()
{
var startVal = 123.456
alert( (startVal - Math.floor(startVal)) != 0 )
}
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follo...
RGB to hex and hex to RGB
...l do to the RGB to hex conversion and add any required zero padding:
function componentToHex(c) {
var hex = c.toString(16);
return hex.length == 1 ? "0" + hex : hex;
}
function rgbToHex(r, g, b) {
return "#" + componentToHex(r) + componentToHex(g) + componentToHex(b);
}
alert(...
How to make a flat list out of list of lists?
...cuts posted so far. (l is the list to flatten.)
Here is the corresponding function:
flatten = lambda l: [item for sublist in l for item in sublist]
As evidence, you can use the timeit module in the standard library:
$ python -mtimeit -s'l=[[1,2,3],[4,5,6], [7], [8,9]]*99' '[item for sublist in ...
How to set an “Accept:” header on Spring RestTemplate request?
...plate();
try {
HttpHeaders headers = createHttpHeaders("fred","1234");
HttpEntity<String> entity = new HttpEntity<String>("parameters", headers);
ResponseEntity<String> response = restTemplate.exchange(theUrl, HttpMethod.GET, entity, String.class);
...
Regarding 'main(int argc, char *argv[])' [duplicate]
...you would write it like this:
int // Specifies that type of variable the function returns.
// main() must return an integer
main ( int argc, char **argv ) {
// code
return 0; // Indicates that everything went well.
}
If your program does not require any arguments, it is equally va...
What is the maximum length of a URL in different browsers?
...v0VpjSFGtrgUNUS2G0qYQwYoQQpIswIINwN8N4iV9FxoAxug34cGfQcStHLFpSVlytz9IzhMKypwWWJlPJQBUfKbLU8YHa5Yi5tckZb4j6R1pmJIQ4ysxePJ+bqr8U8xFznEXJ4u5CZjF5IsI0EfGKjtlbtn+6jFtXyds+efKZJ27dsqOpTx7N1+/RSmIpeskwvKPGqWeZNU02BclSXOZGvbGL8WhF9uI2vEGVrTUMFJmqqsoZrzKLjFY4TgRceG1i1+Ms1lFhe8WQaorxvG8fUl+czVIGWG4QphBsSLgXzP...
Should I use `import os.path` or `import os`?
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os.path works in a funny way. It looks like os should be a package with a submodule path, but in reality os is a normal module that does magic with sys.modules to inject os.path. Here's what happens:
When Python starts up, it loads a bunch of...
Logout: GET or POST?
... for handy URL prefetching.- Nick Craver (@Nick_Craver) January 29, 2013
fun fact: StackOverflow used to handle log-out via GET, but not anymore.
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