main.dart

class Student {
  // ========== Properties (Attributes of a stident)
  String? name, department;
  int? age, matricNumber;
  double? gpa;
  
  // ========== Methods (Actions a student can do)
  // Methods 1: switchDepartment
  void switchDepartment(String newDepartment) {
    department = newDepartment;
  }
  // Methods 2: updateGPA
  void updateGPA(double newGpa) {
    gpa = newGpa;
  }
  
  // Methods 3: printBioData
  void printBioData() {
    print("\n");
    print("Name: $name");
    print("Matric Number: $matricNumber"); 
    print("Age: $age");
    print("Department: $department");
    print("GPA: $gpa");
  }
}

// Main Function
void main(){
  // ================== Examples
  // 01:
  Student student1 = Student();
  student1.name = "Bisola";
  student1.matricNumber = 1010101010;
  student1.age = 17;
  student1.department = "Maths";
  student1.gpa = 4.6;
  student1.printBioData();
  student1.updateGPA(4.7);
  student1.printBioData();
  student1.switchDepartment("Chemistry");
  student1.printBioData();
  
  print("\n");
  
    // 02:
//   Student ahmad = Student();
//   student1.name = "Ahmad";
//   student1.matricNumber = 23232323423;
//   student1.age = 16;
//   student1.department = "Economics";
//   student1.gpa = 4.3;
//   student1.printBioData();
//   student1.updateGPA(4.8);
//   student1.printBioData();
//   student1.switchDepartment("Accounting");
//   student1.printBioData();
}