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Why is a combiner needed for reduce method that converts type in java 8
... an Integer in your case, so passing it 0 is fine.
Another way to achieve what you want :
int length = asList("str1", "str2").stream().mapToInt (s -> s.length())
.reduce(0, (accumulatedInt, len) -> accumulatedInt + len);
Here the type of the stream matches the return type of re...
What does the filter parameter to createScaledBitmap do?
...interpolation. Check Wikipedia or your favorite graphics reference to see what the expected consequences are. Traditionally, you want to do bilinear or bicubic interpolation when upsizing images, and area averaging when downsizing images. I get the impression (though I'm glad to be corrected) tha...
What do the makefile symbols $@ and $< mean?
What do the $@ and $< do exactly?
6 Answers
6
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What's the difference between jQuery's replaceWith() and html()?
What's the difference between jQuery's replaceWith() and html() functions when HTML is being passed in as the parameter?
5 ...
What is the meaning of #XXX in code comments?
...al case. #TODO and #FIXME are two other fix markers vim highlights but what does #XXX mean?
10 Answers
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What is the etymology of 'slug'? [closed]
...he GEB-ish(a) self-referential https://stackoverflow.com/questions/4230846/what-is-the-etymology-of-slug/4230937#4230937, although you can replace the slug with blahblah and it will still find it okay.
It may even date back earlier than that, since screenplays had "slug lines" at the start of each ...
What's the difference between session.Merge and session.SaveOrUpdate?
...d this link that did a pretty good job explaining this type of exception:
What worked for me is the following:
In the mapping Myclass.hbm.xml file, set cascade="merge"
SaveOrUpdate the child/dependent object first before assigning it to the parent object.
SaveOrUpdate the parent object.
However...
Function overloading by return type?
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Contrary to what others are saying, overloading by return type is possible and is done by some modern languages. The usual objection is that in code like
int func();
string func();
int main() { func(); }
you can't tell which func() i...
What's the difference between findAndModify and update in MongoDB?
I'm a little bit confused by the findAndModify method in MongoDB. What's the advantage of it over the update method? For me, it seems that it just returns the item first and then updates it. But why do I need to return the item first? I read the MongoDB: the definitive guide and it says that i...
What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa
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First, it useful to know, what is causing the problem. Googling solution should help, you can log the details (table, column, old value, new value) about the conflict to find better solution for solving the conflict later:
public class ChangeConflict...