dart class
class Car {
// field
String engine = "E1001";
// function
void disp() {
print(engine);
}
}dart class
class Car {
// field
String engine = "E1001";
// function
void disp() {
print(engine);
}
}dart class
// entry point
void main(){
// using the Dog class - creating an instance of this class
var myDog = Dog();
// assigning values to the newly clreated instance
myDog.breed = 'Poodle';
myDog.name = 'Jack';
myDog.color = 'Brown';
// displaying the values on the console
print(myDog.breed);
print(myDog.name);
print(myDog.color);
}
// Dog class
class Dog{
// class properties
String breed;
String name;
String color;
}dart set final variable in constructor
// You cannot mutate final variables in a constructor body,
// instead you must use a special syntax.
// Also note if you have a super() call, it must be called last.
class Point {
final num x;
final num y;
final num distanceFromOrigin;
// Special syntax
Point(this.x, this.y) :
distanceFromOrigin = sqrt(pow(x, 2) + pow(y, 2));
}dart how to tell if an object is an instance of a class
if (emp is Person) {
// Type check
emp.firstName = 'Bob';
}Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
