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Differences between Oracle JDK and OpenJDK
... I'm late to the party, but I'll ask anyway. What does jdk bring to the table that openjdk doesn't? All these answers make openjdk sound like it's equal to or superior in every way, but if that's the case why does Oracle even bother maintaining jdk?
– Kefka
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What does it mean to “program to an interface”?
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Using interfaces is a key factor in making your code easily testable in addition to removing unnecessary couplings between your classes. By creating an interface that defines the operations on your class, you allow classes that want to use that functionality the ability to use it withou...
HTML 5 tag vs Flash video. What are the pros and cons?
...net. Your argument was heard some time ago when people started moving from table based layout to divs and css.
– hannson
Jul 7 '09 at 2:54
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Is the order of iterating through std::map known (and guaranteed by the standard)?
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std::map is a sorted associative container
std::unordered_map is a hash-table based associative container introduced in C++11
So, in order to clarify the guarantees on ordering.
In C++03:
std::set, std::multiset, std::map and std::multimap are guaranteed to be ordered according to the keys (...
python requests file upload
...the following results. Before, running the open there is no record in lsof table about the filename. Then after the open is executed, multiple records appear with read access. After executing the requests.post, the records are still there indicating that the file did not close.
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Should I Dispose() DataSet and DataTable?
DataSet and DataTable both implement IDisposable, so, by conventional best practices, I should call their Dispose() methods.
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Is it worth hashing passwords on the client side
...I always compare the MD5 of the given password with its value in the users table on the server side.
11 Answers
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What is the difference between ng-if and ng-show/ng-hide
...e the template. There is an ng-repeat present, and inside the ng-repeat, a table is shown, which has a lot of ng-shows, ng-hides and even ng-switches present. They wanted to show at least 50 repeats in the list, which would result in more or less 1500-2000 directives to be resolved. I checked the co...
Count, size, length…too many choices in Ruby?
...a query that requests all of the items from the database ('select * from mytable') and then give you the number of items resulting, whereas .count will generate a single query ('select count(*) from mytable') which is considerably faster.
Because these ORMs are so prevalent I following the principl...
What is the best way to implement nested dictionaries?
... star-schema design, you might want to structure it more like a relational table and less like a dictionary.
import collections
class Jobs( object ):
def __init__( self, state, county, title, count ):
self.state= state
self.count= county
self.title= title
self.c...