package chapter12;

import java.util.*;

import java.util.stream.Stream;

import chapter10.Student;

class Class

{

String subject;

Collection<Student> students;

public Class(String su, Student... st)

{

subject = su;

students = Arrays.asList(st);

}

}

public class Sect7_Ex1

{

public static void main(String[] args)

{

Stream.of(new Class("Biology",

new Student("Joe" ,1001,3.81),

new Student("Mary",1002,3.91)),

new Class("Physics",

new Student("Kalpana",1003,3.61),

new Student("Javier" ,1004,3.71))) // Stream<Class>

.flatMap(x -> x.students.stream()) // Stream<Student>

.forEach(x -> System.out.println(x));

}

}