Update src/main/java/Main.java

src/main/java/Main.java

@@ -151,7 +151,7 @@ public class Main {
                     enrollInCourse(student);
                     break;
                 case 3:
-                    //System.out.print(student.getMyCoursesDisplay());
+                    System.out.print(student.getMyCoursesDisplay());
                     break;
                 case 4:
                     System.out.println(" Goodbye, " + student.getUsername() + "!");
@@ -166,12 +166,14 @@ public class Main {
         System.out.print(school.getAllCoursesDisplay());
         System.out.print("\nEnter Course ID to enroll: ");
         int courseId = getIntInput();
+
         Course course = school.findCourseById(courseId);
         if (course == null) {
             System.out.println(" Course not found! Please enter a valid ID.");
             return;
         }
-        if(student.enrolledCourses(course)){
+
+        if (student.enrollInCourse(course)) {
             System.out.println(" Successfully enrolled in " + course.getName());
         } else {
             System.out.println(" You are already enrolled in this course!");

src/main/java/models/Student.java

@@ -11,7 +11,7 @@ public class Student extends User {
         this.enrolledCourses = new ArrayList<>();
     }
 
-    public boolean enrolledCourses(Course course){
+    public boolean enrollInCourse(Course course) {
         if (enrolledCourses.contains(course)) {
             return false;
         }
@@ -28,7 +28,7 @@ public class Student extends User {
         if (enrolledCourses.isEmpty()) {
             return " You are not enrolled in any course yet.";
         } else {
-            StringBuilder sb = new StringBuilder("\n My Course: \n");
+            StringBuilder sb = new StringBuilder("\n My Courses:\n");
             for (int i = 0; i < enrolledCourses.size(); i++) {
                 sb.append("  ").append(i+1).append(". ").append(enrolledCourses.get(i)).append("\n");
             }

src/main/java/services/SchoolSystem.java

@@ -76,9 +76,7 @@ public class SchoolSystem {
 
     public Course findCourseById(int id) {
         for (Course c : allCourses) {
-            if (c.getId() == id){
+            if (c.getId() == id) return c;
-                return c;
-            }
         }
         return null;
     }