Added the missing implementation for the Menu elements aside from Case 5

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

@@ -1,9 +1,6 @@
 package org.example;
 
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Scanner;
+import java.util.*;
 
 public class Administration {
     /**
@@ -509,6 +506,38 @@ public class Administration {
 
 
     }
+
+    public boolean assignGradeToStudent(String studentId, String courseId, String grade) {
+        Student student = findStudentById(studentId);
+        // First, find the course by ID to ensure it exists in the system.
+        Course course = findCourseByID(courseId);
+
+        if (student != null && course != null) {
+            // Check if the student is enrolled in the specified course.
+            if (student.getCourseGrades().containsKey(course)) {
+                // Student is enrolled in the course, proceed to assign the grade.
+                student.getCourseGrades().put(course, grade);
+                return true;
+            } else {
+                // Student is not enrolled in the specified course.
+                System.out.println("Student is not enrolled in the specified course.");
+                return false;
+            }
+        }
+        return false;
+    }
+
+    public void viewCourses() {
+        if (courses.isEmpty()) {
+            System.out.println("No courses available.");
+        } else {
+            System.out.println("Available Courses:");
+            for (Course course : courses) {
+                course.printCourseInfo();
+            }
+        }
+    }
+
 }
 
 

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

@@ -30,10 +30,7 @@ public class Main {
             System.out.println("8. View Courses");
             System.out.println("9. Assign Grade to Student");
             System.out.println("10. View Grades from Student");
-            System.out.println("11. View User");
-            System.out.println("12. Delete User");
-            System.out.println("13. View Course List");
-            System.out.println("14. Exit (includes saving data in the files)");
+            System.out.println("11. Exit (includes saving data in the files)");
             System.out.print("Select an option: ");
 
             int choice = scanner.nextInt();
@@ -84,23 +81,38 @@ public class Main {
                     break;
                 case 8:
                     // View Courses
+                    administration.viewCourses();
                     break;
                 case 9:
                     // Assign Grade to Student
+                    System.out.println("Assign Grade to Student selected");
+                    System.out.print("Enter Student ID: ");
+                    String toBeGradedstudentId = scanner.next();
+                    System.out.print("Enter Course ID: ");
+                    String toBeGradedcourseId = scanner.next();
+                    System.out.print("Enter Grade: ");
+                    String grade = scanner.next();
+
+                    boolean success = administration.assignGradeToStudent(toBeGradedstudentId, toBeGradedcourseId, grade);
+                    if (success) {
+                        System.out.println("Grade assigned successfully.");
+                    } else {
+                        System.out.println("Failed to assign grade. Ensure the student and course IDs are correct.");
+                    }
                     break;
                 case 10:
                     // View Grades from Student
+                    System.out.print("Enter Student ID to view grades: ");
+                    String GradedstudentId = scanner.next();
+                    Student student = administration.findStudentById(GradedstudentId);
+                    if (student != null) {
+                        student.printGrades();
+                    } else {
+                        System.out.println("Student not found.");
+                    }
                     break;
+
                 case 11:
-                    // View User
-                    break;
-                case 12:
-                    // Delete User
-                    break;
-                case 13:
-                    // View Course List
-                    break;
-                case 14:
                     // Exit (includes saving data in the files)
                     exit = true;
                     System.out.println("Exiting...");

src/main/java/org/example/Student.java

@@ -107,6 +107,16 @@ public class Student {
         return students;
     }
 
+    public void assignGrade(Course course, String grade) {
+        // Assuming courseGrades is a Map<Course, String> where the course is the key and the grade is the value
+        this.courseGrades.put(course, grade);
+    }
 
+    public void printGrades() {
+        System.out.println("Grades for Student ID: " + this.studentId);
+        for (Map.Entry<Course, String> entry : courseGrades.entrySet()) {
+            System.out.println("Course: " + entry.getKey().getCourseName() + ", Grade: " + entry.getValue());
+        }
+    }
 
 }