When gasoline is $100 per barrel, then the customer's price at the pump is between $3.50 and $4.00 per gallon. Create a class named GasPrices. Its main() method holds an integer variable named pricePerBarrel to which you will assign a value entered by a user at the keyboard. Create a method to which you pass pricePerBarrel. The method displays the range of possible prices per gallon. For example, if gas is $120 per barrel, then the price at the pump should be between $4.20 and $4.80. Save the application as GasPrices.java.