Define Dart Class

Overview

Let’s learn how to define Dart class in this tutorial. We can define a class in Dart programming language using the class keyword.

Define Dart Class

The general syntax of the Dart class is as follows:

class class_name {

<fields>

<getters/setters>

<constructor>

<methods>

}

The class keyword is followed by the class name defined by the user. The class definition is provided inside the curly braces. A Dart class can consist of fields, constructors, getters, setters, and methods.

Example

/*
Define a Dart class
Dart Tutorials – www.TestingDocs.com
*/

void main() {
var book =new Book();
book.title=”The Old man and the Sea”;
book.author=”Ernest Hemingway”;
book.pages=98;
book.price=90;
//Accessing class Function
book.displayBookInfo();

}

//Define a class Book

class Book {
var title;
var author;
var pages;
var price;

// Class Function
displayBookInfo() {
print(“Book Name is : ${title}”);
print(“Book Author is :${author}”);
print(“Number of Pages: ${pages}”);
print(“Book Price is: ${price}”);
}
}