> Returns a Collection view of the values contained in this map. The collection is backed by the map, so changes to the map are reflected in the collection, and vice-versa. If the map is modified while an iteration over the collection is in progress (except through the iterator's own remove operation), the results of the iteration are undefined. (...) It does not support the add or addAll operations.
There is no reason to believe that the collection returned by Map.values() does not have to go through each value in the source data before the collection is 'done'.
Knowing your algorithms (/problem-solving) and the tools/frameworks you're using, and when and how to apply that knowledge, makes you a good programmer I think. But I don't think it's measurable with a SEDE query. Hence, "Top Answerer" only means "Most Upvoted", whatever that means.
> Returns a Collection view of the values contained in this map. The collection is backed by the map, so changes to the map are reflected in the collection, and vice-versa. If the map is modified while an iteration over the collection is in progress (except through the iterator's own remove operation), the results of the iteration are undefined. (...) It does not support the add or addAll operations.
The values() call on a map is only a view of the map. The collection is backed by the map
> Most concurrent Collection implementations (including most Queues) also differ from the usual java.util conventions in that their Iterators and Spliterators provide weakly consistent rather than fast-fail traversal:
> they are guaranteed to traverse elements as they existed upon construction exactly once, and may (but are not guaranteed to) reflect any modifications subsequent to construction.
The question that prompted this is Add or view pattern with MVVM (but I think this situation is pretty common).
There, you have two answers: one is long, thorough and overall great; the other is much shorter, but it still raises some good points (that are not in the long answer).
In such cases,...
Anyway, @janos - I still disagree with your opening statement, and can't bring myself to +1 an answer that makes such a sweeping statement. I know the code you present works, and I know it will be very much the same results in terms of performance, etc, but, There cannot be a simpler solution: ... no.
there can be a simpler solution..... idiomatic, traditional, whatever.
I had this debate with @Simon recently, about why we were arguing about close reasons....
when I saw the question, I thought the collect due to the groupingby is ugly. I would prefer a solution that doesn't need to load the entire Person collection into memory. I assumed the OP was looking for something more elegant in this aspect. I like my answer mainly for the first part, which makes it clear that this just can't be done. The second part is about implementation, which indeed is arguable, but that's not my main point there
Bit of a preface on my motive: I'm self taught and have never really worked in a collaborative environment. My only benchmark for quality is "does it work" and I've never been really subject to peer review.
With that in mind I just thought I'd dump a small jQuery validation plugin I wrote here ...
different subject, interesting: the OP unaccepted my C# answer, and I only lost -5 rep. Is it because maybe I was rep capped on the day he originally accepted?
uhm, no that doesn't make sense
of course, -accept + upvote showed up as -5 in the notification box, nevermind
Where is the possible memory leak in my code? There is also supposed to be a programming error too in one the methods as well, that might cause problems if I create a subclass of this class.
private static final int MAX_LIST = 3;
protected Object []items;
protected int numItems;
public MyArra...
@nhgrif the thing about short answers, is that.. well, when I feeling like tackling a question, I like to review it inside out and lay down everything I can see that hasn't already been mentioned. I'll write a "short" answer when I don't feel like completely reviewing a post, and will walk away knowing (hoping) someone else addresses the other issues. I think both types of answers are acceptable. Depends on the question, but sometimes I just can't walk away with a "partial review"...
Questions should be answered completely, whether in one answer or in several.
Although with what you're talking about, I even think that several smaller answers all posted by you (2-4 depending on the scope of the question) would be better than 1 mega answer.
I do this all the time with Objective-C questions since there hasn't typically been someone to come in behind me and complete the answer.
this would have done both at the same time: find . \( -name '*.java' -o -name '*.xml' \) -exec bash -c 'unexpand -t 4 "$0" > /tmp/e && mv -v /tmp/e "$0"' {} \;
@nhgrif I see what you're saying, but in the c# tag I'd feel like I'm whoring votes if I split an answer in 3-4 smaller ones. Like that one ref'd on meta, could have been a "view" answer and a separate "model/viewmodel" answer perhaps... but I'd feel somewhat dirty doing that :/
DO NOT USE SED! If there's an embedded tab in a string, you may end up mangling your code. This is what expand command was meant to handle. Use expand. — David W.Nov 12 '13 at 17:11
sed is a general purpose text processing tool, you can't expect it to know that your files are source code and it should not replace tabs within quoted strings
I wrote this little piece of code to linearly interpolate between a winforms control's background colour and any arbirtrarly chosen colour.
I don't like the way I wrote this piece and I was wondering if any of you would be interested in suggesting improvements.
Some improvements/thoughts from...
I posted some code as part of an answer to another question and I thought it would be a good idea to get that code reviewed also.
Any comments are welcome, but I am mostly annoyed by terminalNode. It is basically a slightly convenient factory method, but I think it should either be renamed to s...
I am writing a game where a car drives and makes jumps. When a jump is landed, the player is rewarded if they land all four wheels either at the same time, or near to the same time. If they don't, they are penalised.
I am concerned my solution is not well abstracted (although I am open to all to...
So I wanted to have a vector with usual values and with some sort of indexing : an element can have links to other elements (via indices). Something like the following, where V::size_type is the type of the vector's indices.
vector<pair<T, vector<V::size_type>>>
Obviously, this does not work b...
lol, I just thought: "Hey, why haven't I created this method?", and so I implemented that method, and when I had done so I thought "Hmm... this name isn't quite right". So I renamed it, and then I got a compiler method because I had already implemented that exact method!!
In the end, both answers were good. 200_success helped me realize I needed a sanity check, and I found out the schema design I was looking at was my old version rather than my final version. @PavelStehule recommended passing parameters explicitly (which I will start doing going forward) and ways to make error handling easier. I accepted Pavel's for spending the time to explain all that. — Phrancis39 secs ago
I had no idea you could do all that in Postgres, it is way more flexible than I imagined
@Mat'sMug have you considered switching from MySQL to PostgreSQL instead of M$ SQL?
All those static variables are pointless: first, last, newName. And your non-static methods don't use these variables. Only capitalizeFirstLetter needs newName, and it really shouldn't. And the constructor setting static variables... is a very bad sign. Don't do that.
You could rewrite this prog...
The question that prompted this is Add or view pattern with MVVM (but I think this situation is pretty common).
There, you have two answers: one is long, thorough and overall great; the other is much shorter, but it still raises some good points (that are not in the long answer).
In such cases,...
Bit of a preface on my motive: I'm self taught and have never really worked in a collaborative environment. My only benchmark for quality is "does it work" and I've never been really subject to peer review.
With that in mind I just thought I'd dump a small jQuery validation plugin I wrote here ...
Where is the possible memory leak in my code? There is also supposed to be a programming error too in one the methods as well, that might cause problems if I create a subclass of this class.
private static final int MAX_LIST = 3;
protected Object []items;
protected int numItems;
public MyArra...
I wrote this little piece of code to linearly interpolate between a winforms control's background colour and any arbirtrarly chosen colour.
I don't like the way I wrote this piece and I was wondering if any of you would be interested in suggesting improvements.
Some improvements/thoughts from...
I posted some code as part of an answer to another question and I thought it would be a good idea to get that code reviewed also.
Any comments are welcome, but I am mostly annoyed by terminalNode. It is basically a slightly convenient factory method, but I think it should either be renamed to s...
So I wanted to have a vector with usual values and with some sort of indexing : an element can have links to other elements (via indices). Something like the following, where V::size_type is the type of the vector's indices.
vector<pair<T, vector<V::size_type>>>
Obviously, this does not work b...
