Course.java

package rc1;

public class Course {
	String name;
	int cap;
	String dept;
	Professor prof;
	
	public Course(String name, int cap, String dept, Professor prof) {
		this.name = name;
		this.cap = cap;
		this.dept = dept;
		this.prof = prof;
	}
}

Person.java

package rc1;

public class Person {
	String name;
	int age;
	
	public Person(String name, int age) {
		this.name = name;
		this.age = age;
	}
}

Professor.java

package rc1;

public class Professor extends Person{
	String dept;

	public Professor(String name, int age, String dept) {
		super(name, age);
		this.dept = dept;
	}
	
}

Student.java

package rc1;

public class Student extends Person{
	private float gpa;
	private int creds;
	public Student(String name, int age, float gpa, int creds) {
		super(name, age);
		this.gpa = gpa;
		this.setCreds(creds);
	}
	
	public float getGPA() {
		return this.gpa;
	}
	
	public void setGPA(float gpa) {
		this.gpa = gpa;
	}

	public int getCreds() {
		return creds;
	}

	public void setCreds(int creds) {
		this.creds = creds;
	}
}

University.java

package rc1;

@SuppressWarnings("unused")
public class University {
	private final int SIZE;
	private Person[] faculty;
	private Student[] students;
	private Course[] courses;
	private int facInd = 0;
	private int studInd = 0;
	private int courseInd = 0;
	
	public University(int size) {
		this.SIZE = size;
		this.faculty = new Person[10];
		this.students = new Student[10];
		this.courses = new Course[4];
	}
	
	public void addCourse(Course c) {
		if(courseInd > 3) {
			System.out.println("COURSES LIST ALREADY FULL!");
			return;
		}
		this.courses[courseInd] = c;
		courseInd++;
		System.out.println("Added" + c.name);
	}
	
	
	public static void main(String[] args) {
		University stevens = new University(20);
		Professor k = new Professor("Khayyam", 19, "CS");
		for(int i = 0; i < 5; i++) {
			stevens.addCourse(new Course("CS284", 17, "CS", k));
		}
	}
}