import java.util.List; | |
import java.util.function.Function; | |
import java.util.stream.Collectors; | |
import java.util.stream.Stream; | |
abstract class Test { | |
public List<Integer> gerFirstTriangles() { | |
return flatMap((y -> (map((z1 -> (1)))))).collect(Collectors.toList()); | |
} | |
abstract <R> R flatMap(Function<Integer, R> mapper); | |
abstract <R> Stream<R> map (Function<Integer, R> mapper); | |
} |