21_getters_setters.dart

// Objectives
// 1. Default Getter and Setter
// 2. Custom Getter and Setter
// 3. Private Instance Variable

void main() {

  var student = Student();
  student.name = "Peter";     // Calling default Setter to set value
  print(student.name);        // Calling default Getter to get value

  student.percentage = 438.0;   // Calling Custom Setter to set value
  print(student.percentage);    // Calling Custom Getter to get value
}

class Student {

  String name;        // Instance Variable with default Getter and Setter

  double _percent;    // Private Instance Variable for its own library

  // Instance variable with Custom Setter
  void set percentage(double marksSecured) => _percent = (marksSecured / 500) * 100;
  // Instance variable with Custom Getter
  double get percentage => _percent;
}