Mixin Class in Dart Flutter

 import "dart:io";

/// Mixin Class : Mixin is simply a class with no constructor.

/// Example 1
void main()
{
  Student stdObj = Student();
  Teacher teaObj = Teacher();
  stdObj.roll();
  teaObj.subject();
  stdObj.name();
  stdObj.age();
  teaObj.name();
  teaObj.age();
}
class Student with Name, Age
{
  void roll()
  {
    print("Roll Method is Called");
  }
}
class Teacher with Name, Age
{
  void subject()
  {
    print("subject method is Called");
  }
}
mixin Name
{
  void name()
  {
    print("name method is Called");
  }
}
mixin Age
{
  void age()
  {
    print("age method is Called");
  }
}

/// Example 2
void main()
{
  Doctor d = Doctor();
  d.operation();
  d.takeTemp();
  d.takeTemp2();
  d.clockIn();

  Nurse n = Nurse();
  n.takeCarePatient();
  n.takeTemp();
  n.takeTemp2();
  n.clockIn();

  Bartender b = Bartender();
  b.bartender();
  b.clockIn();
}
mixin Medical
{
  void takeTemp()
  {
    print("takeTemp method is Called");
  }
}
mixin Medical2
{
  void takeTemp2()
  {
    print("takeTemp2 method is Called");
  }
}
class Employee
{
  void clockIn()
  {
    print("clockIn method is Called");
  }
}
class Doctor extends Employee with Medical, Medical2
{
  void operation()
  {
    print("operation method is Called");
  }
}
class Nurse extends Employee with Medical, Medical2
{
  void takeCarePatient()
  {
    print("takeCarePatient method is Called");
  }
}
class Bartender extends Employee
{
  void bartender()
  {
    print("bartender method is Called");
  }
}

/// Example 3
void main()
{
  stdout.write("Enter the Number 1 : ");
  double no1 = double.parse(stdin.readLineSync()!);
  stdout.write("Enter the Number 2 : ");
  double no2 = double.parse(stdin.readLineSync()!);

  Mathematics maths = Mathematics();
  maths.addition(no1, no2);
  maths.subtraction(no1, no2);
  maths.multiplication(no1, no2);
  maths.division(no1, no2);
}
class Mathematics with Addition, Subtraction, Multiplication, Division
{
  void maths()
  {
    print("Mathematics method Called");
  }
}
mixin Addition
{
  void addition(double a, double b)
  {
    double Sum = a + b;
    stdout.write("Addition is : $Sum\n");
  }
}
mixin Subtraction
{
  void subtraction(double a, double b)
  {
    double sub = a - b;
    stdout.write("Subtraction is : $sub\n");
  }
}
mixin Multiplication
{
  void multiplication(double a, double b)
  {
    double mul = a * b;
    stdout.write("Multiplication is : $mul\n");
  }
}
mixin Division
{
  void division(double a, double b)
  {
    double div = a / b;
    stdout.write("Division is : $div\n");
  }
}