Observable.just(18, "China", "Ma")
.collect(Callable> {
arrayListOf()...}, BiConsumer, Any> {
t1, t2 -> t1.add(t2)
}).subscribe(Consumer<MutableList...Observable.just(18, "China", "Ma")
.collectInto(arrayListOf()
, BiConsumer,...Any> {
t1, t2 -> t1.add(t2)
}).subscribe(Consumer> {
Log.e("RX"