java programming please

8. 4.17 (Gas Mileage) Drivers are concerned with the mileage their automobiles get. One driver has kept track of several trips by recording the miles driven and gallons used for each tankful. Develop a Java application that will input the miles driven and gallons used (both as integers) for each trip. The program should calculate and display the miles per gallon obtained for each trip and print the combined miles per gallon obtained for all trips up to this point. All averaging calculations should produce floating-point results. Use class Scanner and sentinel-controlled iteration to obtain the data from the user. 9. 4.18 (Credit Limit Calculator) Develop a Java application that determines whether any of several department store customers has exceeded the credit Limit on a charge account. For each customer, the following facts are available: 1. account under 2. balance beginning of the month total of all allowed