Question: Create a Java class Book for book objects, with attributes title (the book title), author, publisher, year (the year in which the book was published),

Create a Java class Book for book objects, with attributes title (the book title), author, publisher, year (the year in which the book was published), and price. Furthermore, create a method averagePrice(books, y) in this class which takes two arguments: a list of book objects books and an integer number y which represents a year. Your method should return the average price of those books in list books which have been published in year y. Use, as far as possible, Java 8 Streams and Java 8 Stream operations parameterized with Lambda expressions.

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