A Java collection of value pairs? (tuples?)

Question

I like how Java has a Map where you can define the types of each entry in the map, for example .

What I\'m looking for is a type

Answer 1

In project Reactor (io.projectreactor:reactor-core) there is advanced support for n-Tuples:

Tuple2 t = Tuples.of("string", 1)

There you can get t.getT1(), t.getT2(), ... Especially with Stream or Flux you can even map the tuple elements:

Stream> s;
s.map(t -> t.mapT2(i -> i + 2));