refactoring: encapsulated the input handling related with case 10

src/main/java/org/example/Administration.java

@@ -552,8 +552,11 @@ public class Administration {
         return false;
     }
 
-    public void viewGradesFromStudent(String studentId) {
+    public void viewGradesFromStudent() {
+        System.out.print("Enter Student ID to view grades: ");
+        String studentId = scanner.next();
         Student student = findStudentById(studentId);
+
         if (student != null) {
             student.printGrades();
         } else {

src/main/java/org/example/Main.java

@@ -96,9 +96,7 @@ public class Main {
                     break;
                 case 10:
                     // View Grades from Student
-                    System.out.print("Enter Student ID to view grades: ");
-                    String studentId = scanner.next();
-                    administration.viewGradesFromStudent(studentId);
+                    administration.viewGradesFromStudent();
                     break;
 
                 case 11: