Java 8 - Static Method Reference Rule -


i have following piece of code:

public class chap20 {      public static void main(string[] args) {         string[] names = { "john", "jane" };         stream<string> namesstream = stream.of(names);          path path = paths.get(".");         stream<path> files;         try {             files = files.list(path);             files.foreach(system.out::println);         } catch (ioexception e) {             // todo auto-generated catch block             e.printstacktrace();         }     }  }

now here´s file.foreach method signature:

void java.util.stream.stream.foreach(consumer<? super path> action)

i´m reading method accepts consumer of type @ least path type or superclass of path, i´m missreading it, since system.out not superclass of path.

can please explain how correct read it?

? super path says: 'it has super class of path.

system.out.println accepts object. object super class of path hence correct.


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