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HashMap get/put complexity
...n my experience. So no, O(1) certainly isn't guaranteed - but it's usually what you should assume when considering which algorithms and data structures to use.
In JDK 8, HashMap has been tweaked so that if keys can be compared for ordering, then any densely-populated bucket is implemented as a tree...
MongoDB: Combine data from multiple collections into one..how?
... db.users.find();
db.comments.save({userId: users[0]._id, "comment": "Hey, what's up?", created: new ISODate()});
db.comments.save({userId: users[1]._id, "comment": "Not much", created: new ISODate()});
db.comments.save({userId: users[0]._id, "comment": "Cool", created: new ISODate()});
// end sampl...
RegEx to parse or validate Base64 data
... That's the simple question, but the factors that drive this question are what make it difficult.
6 Answers
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Cannot make a static reference to the non-static method
...);
item1.somedata = "200";
Test item2 = new Test();
Test.TTT = "1";
What are the values?
Well
in item1 TTT = 1 and somedata = 200
in item2 TTT = 1 and somedata = 99
In other words, TTT is a datum that is shared by all the instances of the type. So it make no sense to say
class Test {
...
How to solve the “failed to lazily initialize a collection of role” Hibernate exception
... could be used as a workaround, but not an actual solution to the problem. What if we need to fetch lazily?
– Dkyc
Oct 20 '14 at 11:59
14
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How can I get color-int from color resource?
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what about android.R.color.some_color :-(
– Blundell
Jun 18 '12 at 14:29
17
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Does it make sense to use Require.js with Angular.js? [closed]
...
To restate what I think the OP's question really is:
If I'm building an application principally in Angular 1.x, and (implicitly) doing so in the era of Grunt/Gulp/Broccoli and Bower/NPM, and I maybe have a couple additional library ...
How do I initialize an empty array in C#?
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What would you consider better: var strings = new string[]{}; or var strings = new string[0]; BTW: I consider an empty array a perfectly valid default for method parameters: public void EditItems(IEnumerable&...
How to make “if not true condition”?
... the $( ... ) form of cmd-substitution is to be commended, but think about what is coming out of the process. Try echo $(cat /etc/passwd | grep "sysa") to see what I mean. You can take that further by using the -c (count) option to grep and then do if ! [ $(grep -c "sysa" /etc/passwd) -eq 0 ] ; then...
How to link to specific line number on github
...hat means that this link will work forever and not point to lines 18-20 of whatever future version of that file might contain.
Now bask in the glow of your new permanent link. ;-)
update 9/29/2017: As pointed out by @watashiSHUN, github has now made it easier to get the permanent link by providing...