Java programming Question

Write a method countRolls with two arguments, the first indicating a number of distinct six sided dice and the second indicating a desired sum. The method should return the number of ways the dice can add up to the desired sum. For example, with two dice and a sum of 11, there are two ways to create the sum: 6 and 5 or 5 and 6. Use recursive backtracking. Start with the code we wrote in class for rollDice with the helper and driver methods, but instead of printing, you will count the number of lines that would be printed. In this environment, methods must be public, method overloading is not allowed (give the helper method a different name like tryRolls), and the driver countRolls method must be defined after the helper method that it uses