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ToList()— does it create a new list?
...Enumerable<T> you get is the result of combining multiple filtering, ordering, and/or projection operations. Extension methods like ToList() and ToArray() allow you to convert the computed sequence into a standard collection.
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What is stability in sorting algorithms and why is it important?
...thm is said to be stable if two objects with equal keys appear in the same order in sorted output as they appear in the input array to be sorted. Some sorting algorithms are stable by nature like Insertion sort, Merge Sort, Bubble Sort, etc. And some sorting algorithms are not, like Heap Sort, Quick...
Java Array Sort descending?
Is there any EASY way to sort an array in descending order like how they have a sort in ascending order in the Arrays class ?
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In which order should floats be added to get the most precise result?
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Your instinct is basically right, sorting in ascending order (of magnitude) usually improves things somewhat. Consider the case where we're adding single-precision (32 bit) floats, and there are 1 billion values equal to 1 / (1 billion), and one value equal to 1. If the 1 comes f...
Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?
In order to make a simple game, I used a template that draws a canvas with bitmaps like this:
18 Answers
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CSS3 Rotate Animation
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How to maintain a Unique List in Java?
... low) if iteration performance is important.
When iterating a HashSet the order of the yielded elements is undefined.
LinkedHashSet
Hash table and linked list implementation of the Set interface, with predictable iteration order. This implementation differs from HashSet in that it maintains a doub...
What is the difference between a HashMap and a TreeMap? [duplicate]
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TreeMap is an example of a SortedMap, which means that the order of the keys can be sorted, and when iterating over the keys, you can expect that they will be in order.
HashMap on the other hand, makes no such guarantee. Therefore, when iterating over the keys of a HashMap, you can...
Multiple select statements in Single query
I am generating a report in php (mysql),
6 Answers
6
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Wait until all jQuery Ajax requests are done?
...d a ajax request to the queue like this:
$.ajaxQueue({
url: 'page.php',
data: {id: 1},
type: 'POST',
success: function(data) {
$('#status').html(data);
}
});
share
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