streamex | Enhancing Java Stream API | Functional Programming library
kandi X-RAY | streamex Summary
kandi X-RAY | streamex Summary
Enhancing Java Stream API. This library defines four classes: StreamEx, IntStreamEx, LongStreamEx, DoubleStreamEx which are fully compatible with Java 8 stream classes and provide many additional useful methods. Also EntryStream class is provided which represents the stream of map entries and provides additional functionality for this case. Finally there are some new useful collectors defined in MoreCollectors class as well as primitive collectors concept.
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Top functions reviewed by kandi - BETA
- Copy the contents of a string to a buffer .
- Adds an empty node to the tree .
- Creates a collector that collects the elements of the specified map according to the specified type .
- Merge tail .
- Determines the spliterator and returns it .
- Initialize mapper .
- Returns a stream consisting of elements of the stream that satisfy the supplied predicate .
- Returns a stream consisting of integers starting at end .
- returns a new position for a given position
- Collapse the elements of the stream into a stream .
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Community Discussions
Trending Discussions on streamex
QUESTION
I noticed that in the case below standard Java stream better "calculate" variable type than StreamEx.
This is odd, because people love StreamEx and use it everywhere, but then code become polluted with "?".
I want to use List
but StreamEx force me to use List>
. Could someone explain why StreamEx works this way? Can I somehow use the desired variable type with StreamEx ?
ANSWER
Answered 2020-Sep-18 at 12:48This is not a StreamEx
issue. When you use collect(Collectors.toList())
on the StreamEx
, it works equally well. The problem is connected with the toList()
convenience method, which the standard Stream
doesn’t even offer. It’s a general problem that StreamEx
is not to blame for.
The toList
method on StreamEx
has the following signature:
QUESTION
I don't think, that it's called "groupping" but I need to achive the following: I have class
...ANSWER
Answered 2020-Jan-29 at 13:49You can generate all the associated pairs of groups and Person
s, and then collect them with groupingBy
into a Map
:
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