Question: Following code is given Modify this as follow
a) Include a second String instance variable that represents the name of the course’s instructor.
b) Provide a set method to change the instructor’s name and a get method to retrieve it.
c) Modify the constructor to specify two parameters—one for the course name and one
for the instructor’s name.
d) Modify method displayMessage such that it first outputs the welcome message and
course name, then outputs "This course is presented by: " followed by the instructor’s