Java langauge ,

Do not do hard coding, its userinput.

Please do not post if its not working.

I need P6.31 .

for another item. Use a price of-1 as a sentinel. Save the inputs in an array. Call the method that you implemented, and display the discount. Business P6.30 A supermarket wants to reward its best customer of each day, showing the custom- er's name on a sc en in the supermarket. For that purpose, the customer's purchase amount is stored in an ArrayList Doubles and the customer's name is stored in a cor- responding ArrayList. Implement a method public static String nameOfBestCustomer CArrayList customers, int topN) If there were fewer than topl customers, include all of them