I need help with this Java programming assignment:

Write a program that simulates a cashier terminal. Assume that a customer is purchasing three different merchandise items, but possibly with multiple quantities of each item. Use a for loop to prompt for the quantity and unit price of each item. Display a subtotal for each item. After the loop display the total amount due. See Sample Run next.

Sample Run

Enter item 1 quantity 2

Enter item 1 unit price 2.49

Subtotal $4.98

Enter item 2 quantity 3

Enter item 2 unit price 1.19

Subtotal $3.57

Enter item 3 quantity 2

Enter item 3 unit price 4.99

Subtotal $9.98

Your total is $18.53