in Java 8, come posso ottenere un array int da Stream <int[]> senza utilizzare forEach

Question

Come convertire Stream<int[]> in int[] senza utilizzare forEach?

final Stream<int[]> stream = foos.stream() 
      .map(foos -> insertQuery(contact, create)) 
      .map(create::batch) 
      .map(Batch::execute); //Batch::execute will return the int[] 

Answer 1

Usa flatMapToInt

int[] result = stream.flatMapToInt(Arrays::stream).toArray();