If I have a stream of

[a, b, c, d]

what’s a simple and idiomatic way to transform this into a stream of pairs

[[a, b], [c, d]]

does this work on streams as well?

are we talking about Java-Streams or Kotlin Sequences?

Java-streams

you have three choices: 1. replace

Stream

with

Sequence

and use

chunked

2.

stream.toSequence().chunked(2).toStream()

3. ask on stackoverflow or somewhere else how to do it in pure java