class Employee {
  String? name;
  String? city;
  double? salary;
  Employee(String name, String city, double salary) {
    this.name = name;
    this.city = city;
    this.salary = salary;
  }
}

void main() {
  Employee janos = Employee('Perge Árpád', 'Szeged', 348);  
  print(janos.name);
}