Chapter 14, Problem 4PP

Write a generic class, Marks, with a type parameter M where M is a numeric object type (e.g., integer. Double, or any class that extends $\text{java}\text{.lang}\text{.Number}$ ). Add a method named orderAverage that takes an ArrayList of type M and returns a double type data which is the average of the values in the ArrayList. Use the $\text{doubleValue( )}$ method in the Number class to retrieve the value of each number as a double. Test your method with suitable data. Your program should generate a compile-time error if your average method is invoked on an ArrayList and a nonnumeric element is encountered (e.g., strings).