| import java.util.function.Function; |
| import java.util.stream.Collector; |
| |
| class Collectors { |
| |
| public static <A,R,RR> void collectingAndThen(Function<R, RR> finisher, Function<A, R> finisher1) { |
| Function<A, RR> f = finisher1.andThen(finisher); |
| } |
| |
| } |
| |
| |
| class Collectors1 { |
| public static<T,A,R,RR> Collector<T,A,RR> collectingAndThen(Function<R, RR> finisher, Function<A, R> function) { |
| return factory(function.andThen(finisher)); |
| } |
| |
| static <Ts, As, Rs> Collector<Ts, As, Rs> factory(Function<As, Rs> f) { |
| return null; |
| } |
| } |