Update src/main/java/Main.java

src/main/java/Main.java

@@ -70,7 +70,12 @@ public class Main {
         boolean success;
         switch (choice) {
             case 1:
-                //TODO
+                success = school.registerStudent(username, password);
+                if (success) {
+                    System.out.println(" Student registered successfully!");
+                } else {
+                    System.out.println(" Username already exists!");
+                }
                 break;
             case 2:
                 success = school.registerTeacher(username, password);
@@ -103,7 +108,12 @@ public class Main {
 
         switch (choice) {
             case 1:
-                //TODO
+                Student student = school.loginStudent(username, password);
+                if (student != null) {
+                    studentMenu(student);
+                } else {
+                    System.out.println(" Invalid username or password!");
+                }
                 break;
             case 2:
                 Teacher teacher = school.loginTeacher(username, password);
@@ -141,7 +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() + "!");
@@ -153,7 +163,21 @@ public class Main {
     }
 
     private static void enrollInCourse(Student student) {
-       //TODO
+        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.enrollInCourse(course)) {
+            System.out.println(" Successfully enrolled in " + course.getName());
+        } else {
+            System.out.println(" You are already enrolled in this course!");
+        }
     }
 
     // ==================== TEACHER MENU ====================