Question: I'm using Java Programming. please comment the code. The code has to match the expected output. Thanks Problem 1: Book Club Points Serendipity Booksellers has

I'm using Java Programming. please comment the code. The code has to match the expected output. Thanks
Problem 1: Book Club Points Serendipity Booksellers has a book club that awards points to its customers based on the number of books purchased each month. The points are awarded as follows: If a customer purchases O books, he or she earns 0 points. If a customer purchases 1 book, he or she earns 5 points. If a customer purchases 2 books, he or she earns 15 points. If a customer purchases 3 books, he or she earns 30 points. If a customer purchases 4 or more books, he or she earns 60 points. Write a program using 'Switch' case statement that asks the user to enter the number of books that he or she has purchased this month and then displays the number of points awarded. Expected Output: How many books did you buy:10 You earn 60 points. How many books did you buy: -7 Invalid input
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