1. import random
2. import datetime
3. import sys
4.  
5. class StudentManagementSystem:
6.     def __init__(self):
7.         self.students = []
8.         self.courses = []
9.         self.passed_courses = []
10.  
11.     def add_student(self):
12.         first_name = input("Enter the first name of the student: ")
13.         last_name = input("Enter the last name of the student: ")
14.         major = input("Select student's major (CE, EE, ET, ME, SE): ")
15.  
16.         if not first_name.isalpha() or not last_name.isalpha() or not first_name.istitle() or not last_name.istitle():
17.             print("Names should contain only letters and start with capital letters.")
18.             return
19.  
20.         current_year = datetime.datetime.now().year
21.         student_id = random.randint(10000, 99999)
22.  
23.         email = f"{first_name.lower()}.{last_name.lower()}@lut.fi"
24.         student_data = (student_id, first_name, last_name, current_year, major, email)
25.         self.students.append(student_data)
26.  
27.         with open("students.txt", "a") as file:
28.             file.write(','.join(map(str, student_data)) + 'n')
29.  
30.         print("Student added successfully!")
31.  
32.     def search_items(self, file_path, search_term, item_type):
33.         if len(search_term) < 3:
34.             print("Search term should contain at least 3 characters.")
35.             return
36.  
37.         with open(file_path, "r") as file:
38.             items = file.readlines()
39.  
40.         matching_items = [item for item in items if search_term in item]
41.         if matching_items:
42.             print(f"Matching {item_type}s:")
43.             for item in matching_items:
44.                 item_info = item.strip().split(",")
45.                 print(f"ID: {item_info[0]}, {item_type.capitalize()}: {item_info[1]}")
46.         else:
47.             print(f"No matching {item_type}s found.")
48.  
49.     def search_student(self):
50.         search_term = input("Give at least 3 characters of the student's first or last name: ")
51.         self.search_items("students.txt", search_term, "student")
52.  
53.     def search_course(self):
54.         search_term = input("Give at least 3 characters of the course name or teacher's name: ")
55.         self.search_items("courses.txt", search_term, "course")
56.  
57.     def add_course_completion(self):
58.         # Functionality for adding course completion
59.         pass
60.  
61.     def show_student_record(self):
62.         # Functionality for displaying student records
63.         pass
64.  
65.     def main_menu(self):
66.         print("You may select one of the following:")
67.         print("1) Add student")
68.         print("2) Search student")
69.         print("3) Search course")
70.         print("4) Add course completion")
71.         print("5) Show student's record")
72.         print("0) Exit")
73.         choice = input("What is your selection? ")
74.  
75.         if choice == "1":
76.             self.add_student()
77.         elif choice == "2":
78.             self.search_student()
79.         elif choice == "3":
80.             self.search_course()
81.         elif choice == "4":
82.             self.add_course_completion()
83.         elif choice == "5":
84.             self.show_student_record()
85.         elif choice == "0":
86.             print("Exiting the program.")
87.             sys.exit()
88.         else:
89.             print("Invalid input. Please select a valid option.")
90.  
91. if __name__ == "__main__":
92.     system = StudentManagementSystem&#40;&#41;
93.     while True:
94.         system.main_menu()
95.