For the given sequence diagram, Which of the following correctly implements the design?  a)public class Student {      private Course c1 = new Course();      public void enroll()      {           c1.register();           c1.accessCourse();      } } b) public class Course {      private Course c1 = new Student();      public void enroll()      {           c1.register();           c1.accessCourse();      } } c) public class Student {      private Student s1 = new Course();      public void enroll()      {           s1.register();           s1.accessCourse();      } } d)public class Course {      private Course s1 = new Student();      public void enroll()      {           s1.register();           s1.accessCourse();      } } e) public class Course {      private Course c1 = new Course();      public void enroll()      {           s1.register();           s1.accessCourse();      } }

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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For the given sequence diagram,

Which of the following correctly implements the design? 

a)public class Student

{

     private Course c1 = new Course();

     public void enroll()

     {

          c1.register();

          c1.accessCourse();

     }

}

b) public class Course

{

     private Course c1 = new Student();

     public void enroll()

     {

          c1.register();

          c1.accessCourse();

     }

}

c) public class Student

{

     private Student s1 = new Course();

     public void enroll()

     {

          s1.register();

          s1.accessCourse();

     }

}

d)public class Course

{

     private Course s1 = new Student();

     public void enroll()

     {

          s1.register();

          s1.accessCourse();

     }

}

e) public class Course

{

     private Course c1 = new Course();

     public void enroll()

     {

          s1.register();

          s1.accessCourse();

     }

}

s1:Student
enroll()
<<create>>
c1:Course
register()
accessCourse()
Transcribed Image Text:s1:Student enroll() <<create>> c1:Course register() accessCourse()
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