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Text editor to open big (giant, huge, large) text files [closed]
...hting, line numbers, huge files, regex, multiple files and views, and much more. The free version can not: process regex, filter files, synchronize timestamps, and save changed files.
Free editors:
Your regular editor or IDE. Modern editors can handle surprisingly large files. In particular, Vim...
Prefer composition over inheritance?
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Prefer composition over inheritance as it is more malleable / easy to modify later, but do not use a compose-always approach. With composition, it's easy to change behavior on the fly with Dependency Injection / Setters. Inheritance is more rigid as most languages do no...
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
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This script doesn't work so well with more than 2 duplicates (e.g. arr = [9, 9, 9, 111, 2, 3, 3, 3, 4, 4, 5, 7];
– Mottie
Oct 23 '10 at 15:00
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Singleton: How should it be used
... an answer that has links to a lot of questions/answers about singletons: More info about singletons here:
24 Answers
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Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
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This has saved my bacon on more than one occasion. I could only upvote once. Wished they'd let me upvote for every time I've copied and pasted this.
– Damon Drake
Dec 31 '13 at 22:42
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Is Java really slow?
...ime compiled language (C, Fortran, etc.) can beat it; however, Java can be more than 10x as fast as PHP, Ruby, Python, etc. There are specific areas where it can beat common compiled languages (if they use standard libraries).
There is no excuse for "slow" Java applications now. Developers and lega...
Hibernate throws MultipleBagFetchException - cannot simultaneously fetch multiple bags
...he @*ToMany annotation.
But note that in most cases a Set<Child> is more appropriate than List<Child>, so unless you really need a List - go for Set
But remind that with using sets you won't eliminate the underlaying Cartesian Product as described by Vlad Mihalcea in his answer!
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JSON and XML comparison [closed]
... change the details to make what I'm saying not quite valid.
JSON is both more compact and (in my view) more readable - in transmission it can be "faster" simply because less data is transferred.
In parsing, it depends on your parser. A parser turning the code (be it JSON or XML) into a data struc...
How can I quantify difference between two images?
... want to normalize images.
But be careful, in some situations this may do more wrong than good. For example, a single bright pixel on a dark background will make the normalized image very different.
Is color information important?
If you want to notice color changes, you will have a vector of colo...
Difference between Covariance & Contra-variance
...es of a mapping function that associates one member of a set with another. More specifically, a mapping can be covariant or contravariant with respect to a relation on that set.
Consider the following two subsets of the set of all C# types. First:
{ Animal,
Tiger,
Fruit,
Banana }.
And s...