Python In Netbeans !!better!! 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

class Student: """Student class with basic information""" python in netbeans

def get_average_grade(self): """Calculate average grade of all students""" if not self.students: return 0 total = sum(s.grade for s in self.students.values()) return total / len(self.students) """ File: student_manager

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) Find Student") print("4