Instructor Set
Chapter 9 presented an Instructor class that holds information about an instructor. (See Section 9.7—Aggregation) Modify the Instructor class by overriding the hashCode and equals methods. Then write a class that stores several Instructor objects in a HashSet. The class should be able to display all the instructors in the set, and allow the user to search for an instructor. Demonstrate the class in an application.
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