JAVA QUESTION Part 2: Course Registration (50 points) Write a Student and Course

Question

JAVA QUESTION

Part 2: Course Registration (50 points) Write a Student and Course class that might be part of a course registration system. A student is described by: first name last name student ID (as text) whether or not tuition is paid A course is described by: a name the maximum number of students that can be enrolled in the class a roster of students enrolled in the course (stored as a Student[]) Student Class (10 points) In your class, include: instance data variables a constructor getters and setters a toString method Course Class (40 points) In your class, include instance data variables a constructor a course is initially created with no students on the roster getters and setters think about which variables should have setters include validity checks where appropriate a toString method include the name, number of students enrolled in the course, maximum number that can be enrolled, and a printed roster as part of the text representation make sure that the text representation does not include any "nulls" an addStudent method method header: public boolean addStudent(Student student) if there is room for a student and the student has paid their tuition, add the student to the roster a dropStudent method method header: public boolean dropStudent(Student student) if the student is on the roster, remove them

Explanation / Answer

public class Student {
   private String firstname;
   private String lastname;
   private String Id;

   public Student(String firstname, String lastname, String id) {
       super();
       this.firstname = firstname;
       this.lastname = lastname;
       Id = id;
   }

   public String getFirstname() {
       return firstname;
   }

   public void setFirstname(String firstname) {
       this.firstname = firstname;
   }

   public String getLastname() {
       return lastname;
   }

   public void setLastname(String lastname) {
       this.lastname = lastname;
   }

   public String getId() {
       return Id;
   }

   public void setId(String id) {
       Id = id;
   }

   @Override
   public String toString() {
       return "Student [firstname=" + firstname + ", lastname=" + lastname + ", Id=" + Id + "]";
   }
  

}

======================================================================================

import java.util.Arrays;

public class Course {

   private String name;
   private Student[] student;
  
   public Course(String name) {
       // TODO Auto-generated constructor stub
       this.name = name;
   }
  
   public Course(String name, Student[] student) {
       super();
       this.name = name;
       this.student = student;
   }
   public String getName() {
       return name;
   }
   public void setName(String name) {
       this.name = name;
   }
   public Student[] getStudent() {
       return student;
   }
   public void setStudent(Student[] student) {
       this.student = student;
   }
  
  
   public boolean addStudent(Student stud){
       for(int i=0;i<student.length;++i){
           if(student[i]==null)
                   student[i] = stud;
           return true;
       }
       return false;
   }
   public boolean dropStudent(Student stud){
       for(int i=0;i<student.length;++i){
           if(student[i].getFirstname().equals(stud.getFirstname()))
                   student[i] = null;
           return true;
       }
       return false;
   }

   @Override
   public String toString() {
       return "Course [name=" + name + ", student=" + Arrays.toString(student) + "]";
   }
  
}

=========================================================================================

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