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Exercise 1 Implement the following UML diagram. Note that the abstract class is indicated with italics and shading. Course - courseName: string - instructor String finalGrade double // represents the final average course grade + setName void +getName ) : string + setFinalGrade (g double) void t getFinalGrade () : double + setInstructor ( instr: string) : void + getInstructor ) : String + abstract calculateFinalGrade () : void // abstract method + tostring () : string + setName (n : string)void (n : String) ; ComputerScience - grades double - numGrades : int rScience (num + Compute : int) + getGrades : double [l + addGrade grade : double ) : void