Enter Student ID: S001 Enter Name: Alice Johnson Enter Age: 20 Enter Grade (0-100): 92 ✓ Student Alice Johnson added successfully!

def remove_student(self, student_id): """Remove a student by ID""" if student_id in self.students: removed = self.students.pop(student_id) print(f"✓ Student removed.name removed successfully!") return True print(f"Student with ID student_id not found!") return False

def to_dict(self): """Convert student object to dictionary for JSON serialization""" return 'student_id': self.student_id, 'name': self.name, 'age': self.age, 'grade': self.grade, 'created_at': self.created_at.isoformat()

def add_student(self, student): """Add a new student""" if student.student_id in self.students: print(f"Student with ID student.student_id already exists!") return False self.students[student.student_id] = student print(f"✓ Student student.name added successfully!") return True

def load_from_file(self, filename='students.json'): """Load student data from JSON file""" try: with open(filename, 'r') as f: data = json.load(f) for item in data: student = Student( item['student_id'], item['name'], item['age'], item['grade'] ) self.students[student.student_id] = student print(f"✓ Loaded len(data) students from filename") return True except FileNotFoundError: print(f"No saved data found in filename") return False def display_menu(): """Display the main menu""" print("\n" + "="*50) print(" STUDENT MANAGEMENT SYSTEM") print("="*50) print("1. Add New Student") print("2. Remove Student") print("3. Find Student") print("4. List All Students") print("5. Show Statistics") print("6. Save Data to File") print("7. Load Data from File") print("8. Exit") print("="*50)

# Try to load existing data manager.load_from_file()

""" File: student_manager.py Description: A simple student management system demonstrating Python in NetBeans Author: NetBeans Python Example """ import json from datetime import datetime

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Python In Netbeans ⟶

Enter Student ID: S001 Enter Name: Alice Johnson Enter Age: 20 Enter Grade (0-100): 92 ✓ Student Alice Johnson added successfully!

def remove_student(self, student_id): """Remove a student by ID""" if student_id in self.students: removed = self.students.pop(student_id) print(f"✓ Student removed.name removed successfully!") return True print(f"Student with ID student_id not found!") return False python in netbeans

def to_dict(self): """Convert student object to dictionary for JSON serialization""" return 'student_id': self.student_id, 'name': self.name, 'age': self.age, 'grade': self.grade, 'created_at': self.created_at.isoformat() Enter Student ID: S001 Enter Name: Alice Johnson

def add_student(self, student): """Add a new student""" if student.student_id in self.students: print(f"Student with ID student.student_id already exists!") return False self.students[student.student_id] = student print(f"✓ Student student.name added successfully!") return True Remove Student") print("3

def load_from_file(self, filename='students.json'): """Load student data from JSON file""" try: with open(filename, 'r') as f: data = json.load(f) for item in data: student = Student( item['student_id'], item['name'], item['age'], item['grade'] ) self.students[student.student_id] = student print(f"✓ Loaded len(data) students from filename") return True except FileNotFoundError: print(f"No saved data found in filename") return False def display_menu(): """Display the main menu""" print("\n" + "="*50) print(" STUDENT MANAGEMENT SYSTEM") print("="*50) print("1. Add New Student") print("2. Remove Student") print("3. Find Student") print("4. List All Students") print("5. Show Statistics") print("6. Save Data to File") print("7. Load Data from File") print("8. Exit") print("="*50)

# Try to load existing data manager.load_from_file()

""" File: student_manager.py Description: A simple student management system demonstrating Python in NetBeans Author: NetBeans Python Example """ import json from datetime import datetime

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