Help, need a java code for this problem and I need a flowchart as well. It can not be Python.

Problem Statement

Design a program that

1. Asks the user to enter the number of books that they have purchased this month.

2. Displays the number of points awarded.

3. If the user enters a value less than 0, it will display an error message and will not display any 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 shown below. If the customer purchases:

• 0 books, they earn 0 points

• 1 book, they earn 5 points

• 2 books, they earn 15 points

• 3 books, they earn 30 points

• 4 or more books, they earn 60 points.

Your program should contain the following:

• Module main. Asks the user how many books were purchased. Passes the number of books purchased to pointsEarned.

• Module pointsEarned. Uses a decision statement to determine the number of points earned based on the number of books purchased.

Expected Output

How many books did you purchase? 10

You earned 60 points.