Goal: Working with Aggregate classes and Avoiding Security Issues. When writing an aggregate class, you should be careful not to unintentionally create "security holes" that can allow code outside the class to modify private data inside the class. Lab /= In this example, the Course class is an aggregate class: it has instructorta String) and a textbook (a Book) oblects as fields. The UML Diagram for the Course class is below: + te + Course(instr:String, bk:Book): Book is a class that has author (a String) and title (a String) as fields. The UML Diagram for the Book class is below: - author: String title: String +Book: +getAuthor):String ortau:String): void + setTitle(ti:String): void You are glven the partial definition of the Course class to modify. Define the constructer for the Course class. This constructor accepts two p (NOTE: Do not worry about writing the definiton of the Book class. It has already been defined for you. You can call the methods in the Book class specified in the UML Diagram.) ters, a String and a Book oblect. Use these parameters to initialize the instance fields, instructor and textbook SUBMIT RESET RESET 1 of 1: Fri Feb 09 2018 21:27:47 GMT-0500 (EST) 2 pablie String instruetor 3 public Book textbook Book textbook i1 --.-Insert Your End of Your Code 0 //end class