dart-mixin-example1.dart

dart-mixin-example1.dart

import 'dart:math';

mixin Area {
  double getSquareArea(double side) {
    return side * side;
  }

  double getCircleArea(double radius) {
    return pi * radius * radius;
  }
}

class Shapes with Area {
  final double side;
  final double radius;

  const Shapes({
    this.side,
    this.radius,
  });

  double get squareArea => getSquareArea(side);
  double get circleArea => getCircleArea(radius);
}

void main() {
  final myShapes = Shapes(side: 10.0, radius: 5.0);

  print(
      'area of square is ${myShapes.squareArea} and circle is ${myShapes.circleArea}');
}