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What is an efficient way to implement a singleton pattern in Java? [closed]
...ak Hotel" };
public void printFavorites() {
System.out.println(Arrays.toString(favoriteSongs));
}
}
Edit: An online portion of "Effective Java" says:
"This approach is functionally equivalent to the public field approach, except that it is more concise, provides the serializa...
HTML table with 100% width, with vertical scroll inside tbody [duplicate]
...tbody tr:first').children(),
colWidth;
// Get the tbody columns width array
colWidth = $bodyCells.map(function() {
return $(this).width();
}).get();
// Set the width of thead columns
$table.find('thead tr').children().each(function(i, v) {
$(v).width(colWidth[i]);
});
And here is...
MySQL vs MongoDB 1000 reads
... bunch of rand numbers.
function get_15_random_numbers()
{
$numbers = array();
for($i=1;$i<=15;$i++)
{
$numbers[] = mt_rand(1, 20000000) ;
}
return $numbers;
}
then theres a major difference b/w implode and in.
and finally what is going on here. looks like creatin...
Angular.js ng-repeat across multiple tr's
...This process worked fantastically using knockout.js when iterating over an array of these rows, because I could use <!-- ko:foreach --> around both tr elements.
...
Entity Framework DateTime and UTC
...'s using statements, you get some unhelpful compile errors such as 'System.Array' does not contain a definition for 'Where'
– Jacob Eggers
May 30 '14 at 19:24
7
...
Should unit tests be written for getter and setters?
...is the parameter not the foo field on the object).
If you are returning an array or collection you should be testing whether or not the getter is going to be performing defensive copies of the data passed into the setter before returning.
Otherwise, if you have the most basic setters/getters then un...
What REALLY happens when you don't free after malloc?
...pointer to any type of object
and then used to access such an object or an array of such objects in the space allocated
(until the space is explicitly deallocated). The lifetime of an allocated object extends
from the allocation until the deallocation.[...]
So it has not to be given that the enviro...
Understanding prototypal inheritance in JavaScript
...rue for Car: Car.prototype.constructor === Car, but it is equally true for Array, Object, String, ...etc.
But if you reassign a different object to prototype, that invariance is broken. Usually this is not a problem (as you have noticed), but it is better to reinstate it, because it answers the qu...
Is it safe to remove selected keys from map within a range loop?
...erts at the rate of 2^B (from this source code):
byte *buckets; // array of 2^B Buckets. may be nil if count==0.
So there are almost always more buckets allocated than you're using, and when you do a range over the map, it checks that tophash value of each bucket in that 2^B to see if it c...
How to resize an image with OpenCV2.0 and Python2.6
...caling factors returns an error on cv2.resize() saying 'src is not a numpy array, neither a scalar.' please advise?
– BenP
Jan 29 '19 at 17:53
...