A customer in a store is purchasing three items. Write a JavaFx application that asks for the price of each item, tax %, and whether item will be picked up or delivered; Then display the subtotal of the sale, the amount of sales tax, and the total, if items are to be delivered, add fee to the total cost.your program should at least 4 methods: 1.  A method to get the price of item and return as double array. 2.  A method that receives the price array and tax % as parameters, calculates the sales tax, and returns the sales tax. 3. A method that receives the total price, sales tax, and delivery fee as parameters, and displays all along with the subtotal. 4. A main method where the above are called appropriately to solve the problem.

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Math class and its different methods

Java math class consists of arithmetic math methods that performs basic numeric operations such as finding the maximum or minimum of two values, rounding values, logarithmic functions, square root, and trigonometric functions, etc. The Math library functions can be accessed using the header Java.lang.Math. These math methods under Java math class are for our convenience.