Work programming exercise 11.5, page 446. Please follow the specifications given in the problem statement. Write a separate test program to create and test at least one object of the modified class Course. Make sure you test all methods in class Course. 11.5 (TheCourseclass) Rewrite the Course class in Listing 10.6. Use an ArrayList to replace an array to store students. Draw the new UML diagram for the class. You should not change the original contract of the Course class (i.e., the definition of the constructors and methods should not be changed, but the private members may be changed.)