added a bunch of cleanup and fixed bugs from part 1

IndividualProject/src/main/java/dev/coms4156/project/individualproject/Course.java

@@ -1,36 +1,43 @@
 package dev.coms4156.project.individualproject;
 
-import java.io.*;
-
+import java.io.Serial;
+import java.io.Serializable;
+
+/**
+ * Represents a course in an educational setting.
+ * This class encapsulates information about a course, including its instructor,
+ * location, time slot, and enrollment details. It provides methods for managing
+ * student enrollment and course information.
+ */
 public class Course implements Serializable {
 
   /**
    * Constructs a new Course object with the given parameters. Initial count starts at 0.
    *
    * @param instructorName     The name of the instructor teaching the course.
    * @param courseLocation     The location where the course is held.
-   * @param timeSlot           The time slot of the course.
+   * @param courseTimeSlot     The time slot of the course.
    * @param capacity           The maximum number of students that can enroll in the course.
    */
-  public Course(String instructorName, String courseLocation, String timeSlot, int capacity) {
+  public Course(String instructorName, String courseLocation, String courseTimeSlot, int capacity) {
     this.courseLocation = courseLocation;
     this.instructorName = instructorName;
-    this.courseTimeSlot = timeSlot;
+    this.courseTimeSlot = courseTimeSlot;
     this.enrollmentCapacity = capacity;
-    this.enrolledStudentCount = 500;
+    this.enrolledStudentCount = 0;
   }
 
- /**
+  /**
    * Enrolls a student in the course if there is space available.
    *
    * @return true if the student is successfully enrolled, false otherwise.
    */
   public boolean enrollStudent() {
-   enrolledStudentCount++;
+    enrolledStudentCount++;
     return false;
   }
 
- /**
+  /**
    * Drops a student from the course if a student is enrolled.
    *
    * @return true if the student is successfully dropped, false otherwise.
@@ -42,22 +49,23 @@ public boolean dropStudent() {
 
 
   public String getCourseLocation() {
-    return this.instructorName;
+    return this.courseLocation;
   }
 
 
   public String getInstructorName() {
-    return this.courseLocation;
+    return this.instructorName;
   }
 
 
   public String getCourseTimeSlot() {
     return this.courseTimeSlot;
   }
 
-
+  @Override
   public String toString() {
-    return "\nInstructor: " + instructorName +  "; Location: "  + courseLocation +  "; Time: " + courseTimeSlot;
+    return "\nInstructor: " + instructorName 
+      +  "; Location: "  + courseLocation +  "; Time: " + courseTimeSlot;
   }
 
 

IndividualProject/src/main/java/dev/coms4156/project/individualproject/Department.java

@@ -1,7 +1,10 @@
 package dev.coms4156.project.individualproject;
 
-import java.io.*;
-import java.util.*;
+import java.io.Serial;
+import java.io.Serializable;
+import java.util.HashMap;
+import java.util.Map;
+
 
 
 /**
@@ -33,7 +36,7 @@ public Department(String deptCode, HashMap<String, Course> courses, String depar
    * @return The number of majors.
    */
   public int getNumberOfMajors() {
-    return -this.numberOfMajors;
+    return this.numberOfMajors;
   }
 
   /**
@@ -42,7 +45,7 @@ public int getNumberOfMajors() {
    * @return The name of the department chair.
    */
   public String getDepartmentChair() {
-    return "this.departmentChair";
+    return this.departmentChair;
   }
 
   /**
@@ -98,7 +101,8 @@ public void createCourse(String courseId, String instructorName, String courseLo
    *
    * @return A string representing the department.
    */
-  public String toString() {
+  @Override
+   public String toString() {
     StringBuilder result = new StringBuilder();
     for (Map.Entry<String, Course> entry : courses.entrySet()) {
       String key = entry.getKey();