Class in Dart

A class in Dart is like a blueprint for creating objects. It groups related data and functions together, making code more organized and reusable.

Read Medium Story for free 👇

Class in Dart

Why Use Classes?

• Organised Code: Classes help group related data and behaviour together.
• Reusability: You can create multiple objects from a single class.
• Encapsulation: keeps data safe and prevents unintended changes.
• Inheritance: One class can inherit properties and methods from another.

Defining a Class

A class has properties (variables) and methods (functions). Let’s start with a simple example:

class Person {
  String name;
  int age;

// Constructor to initialize values
  Person(this.name, this.age);
  // Method to introduce the person
  void introduce() {
    print('Hello, my name is $name and I am $age years old.');
  }
}
void main() {
  Person p1 = Person('Alice', 30);
  p1.introduce(); // Output: Hello, my name is Alice and I am 30 years old.
}