Get and Set methods for array of objects

[Kd Martin]

How do you return an entire array from a "get" method? For instance, I'm trying to return an array of Instructor objects. I keep getting this error:

Course.java:77: illegal start of expression
this.Instructor[] = Instructor;

This is my code:

public class Course {
	private String type;
	private String title;
	private int number;
	private int numCredits;
	private Instructor instructor;
	private GradStudent[] TAs;
	private Student[] students;
	private int capacity;
	private int currentEnrollment;
	
	public Course(String type, int number, String title, int numCredits) {
		this.type = type;
		this.number = number;
		this.title = title;
		this.numCredits = numCredits;
	}
	public Course(String type, int number, String title, int numCredits,
			Instructor instructor, GradStudent[] TAs, int capacity) {
		this(type, number, title, numCredits);
		this.instructor = instructor;
		this.TAs = TAs;
		students = new Student[capacity];
		currentEnrollment = 0;
	}
	
	public String getType() {
		return type;
	}
	public void setType(String type) {
		this.type = type;
	}
	public String getTitle() {
		return title;
	}
	public void setTitle(String title) {
		this.title = title;
	}
	public int getNumber() {
		return number;
	}
	public void setNumber(int number) {
		this.number = number;
	}
	public int getNumCredits() {
		return numCredits;
	}
	public void setNumCredits(int numCredits) {
		this.numCredits = numCredits;
	}
	public int getCapacity() {
		return capacity;
	}
	public void setCapacity(int capacity) {
		Student[] students1 = new Student[capacity];
		for(int i=0; i<students.length; i++) 
			students1[i] = students[i];
		students = students1;
	}

	public int getCurrentEnrollment() {
		return currentEnrollment;
	}
	public void setCurrentEnrollment(int currentEnrollment) {
		this.currentEnrollment = currentEnrollment;
	}
	public Student[] getStudents() {
		return students;
	}
	public void setStudents(Student[] students) {
		this.students = students;
	}
	public Instructor[] getInstructors() {
		return Instructor;
	}
	public void setInstructors(Instructor[] instructors) {
		this.Instructor[] = Instructor;
	}
	public GradStudent[] getTAs() {
		return TAs;
	}
	public void setTAs(GradStudent[] TAs) {
		this.TAs = TAs;
	}
	
	public boolean addStudent(Student student) {
		if(currentEnrollment < capacity) {
			students[currentEnrollment] = student;
         	currentEnrollment++;
			return true;
		}
		else return false;
	}
	
	public boolean removeStudent(Student student) {
		for(int i=0; i<students.length; i++) {
			if(students[i].equals(student)) {
				students[i] = null;
				--currentEnrollment;
				return true;
			}
		}
		return false;
	}
	
	public String toString() {
		String s = "Course Info: " + type + number + "\nTitle: " + title + "\nInstructor: " + instructor.getName() + "\nTAs: ";
		for(int i=0; i<TAs.length; i++) {
			s += "\n" + TAs[i].getName();
		}
		 s += "\nNumber Of Students: " + currentEnrollment + "\nCapacity: " + capacity;
		 return s;
	}
}

Also, how do you use a set method for an array? I'm getting an error in my Student class that says:
./Course.java:77: cannot find symbol
symbol : variable Instructor
location: class Course
this.Instructor[] = Instructor;
^
./Course.java:77: cannot find symbol
symbol : variable Instructor
location: class Course
this.Instructor[] = Instructor;
^

Thanks!

[Mohamed Sanaulla]

There is nothing special that you got to do with the arrays, they are just another object and you use the setters the way you use for other objects, for example:

class Sample
{
  Instructor[] instructors;
  public Instructor[] getInstructors()
  {
    return this.instructors;
  }

  public void setInstructors(Instructor[] instructors)
  {
     this.instructors = instructors
  }
}

So in your Course class you have declared instructor of type Instructor and not an array. But your getters/setters are trying to deal with the Instructor array.

If at all you want to dynamically add the Instructor into a collection- you might want to consider some implementation of List.