Inheritance with Named and Default Constructors

24_inheritance_with_constructors.dart

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+
+// Objectives
+// 1. Inheritance with Default Constructor and Parameterised Constructor
+// 2. Inheritance with Named Constructor
+
+void main() {
+
+	var dog1 = Dog("Labrador", "Black");
+
+	print("");
+
+	var dog2 = Dog("Pug", "Brown");
+
+	print("");
+
+	var dog3 = Dog.myNamedConstructor("German Shepherd", "Black-Brown");
+}
+
+class Animal {
+
+	String color;
+
+	Animal(String color) {
+		this.color = color;
+		print("Animal class constructor");
+	}
+
+	Animal.myAnimalNamedConstrctor(String color) {
+		print("Animal class named constructor");
+	}
+}
+
+class Dog extends Animal {
+
+	String breed;
+
+	Dog(String breed, String color) : super(color) {
+		this.breed = breed;
+		print("Dog class constructor");
+	}
+
+	Dog.myNamedConstructor(String breed, String color) : super.myAnimalNamedConstrctor(color) {
+		this.breed = breed;
+		print("Dog class Named Constructor");
+	}
+}