Please help me with this problem.Programming is based on the Java language.

Update the class lem by adding a method called totallos o Crass Em by multiplying quantity by the price (note: total cost of an item is not attribute, it is a method. For example, if one of the items/instances has item quantity 10 and item price 12.50 then its total cost will be $125.0 calculated by the method). Also update the driver class so it outputs item number, quantity, price, and totalCost for each of the 6 items