Dart Setter Method

Overview

Let’s learn about the Dart Setter method in this tutorial. The setter method is used to set or initialize the value of the fields.

Define a Setter method

We can declare the setter method using the set keyword with one parameter.

The general syntax for the setter method is as follows:

void set setter_name(data_type param) {

this.field_name = param;

}

Example

/*
 Setter and Getter Demo Program
 Dart Tutorials - www.TestingDocs.com
 */

class Book {
 late String title;
 late String author;
 late double price;

 // setter methods
 void set book_title(String title) {
 this.title = title;
 }

 void set book_author(String author) {
 this.author = author;
 }

 void set book_price(double p) {
 this.price = p;
 }

 // getter methods
 String get book_author {
 return author;
 }

 String get book_title {
 return title;
 }

 double get book_price {
 return price;
 }
}


 void main() {
// create book object
 Book bObj = new Book();
 bObj.book_author = "Sears & Zemansky";
 bObj.book_title = "University Physics";
 bObj.book_price = 99.99;

// print book object
 print("Book Author: " + bObj.book_author);
 print("Book Title : " + bObj.book_title);
 print("Book Price :\$ " + bObj.book_price.toString());
 }

Dart Setter Method