SOFTCODE9X

  In Dart, creating and using classes and objects follows a similar structure to other object-oriented languages. Here’s a basic overview: 1. Creating a Class A class is a blueprint for creating objects. It defines properties (variables) and methods (functions) that the objects created from the class will have. Here’s an example of a simple class: class Person {      String name;   int age;   Person(this.name, this.age);   void displayInfo() {     print('Name: $name, Age: $age');   } } In this class: name and age are properties (also called fields or attributes). The constructor Person(this.name, this.age) initializes the properties when the object is created. displayInfo is a method that displays the person's name and age. 2. Creating an Object Once you’ve defined a class, you can create objects from it. Objects are instances of the class and have access to the class’s properties and methods. void ...

  Generics in Dart allow you to create reusable and type-safe data structures and functions. By defining a class or method with a type parameter, you can work with different data types without sacrificing type safety. For example, a generic Stack<T> class can store elements of any type, such as integers, strings, or custom objects, while ensuring that only the specified type is used throughout the stack's operations. This not only makes your code more flexible and reusable but also helps prevent runtime errors by catching type mismatches at compile time. Using generics, you can build robust and versatile components that integrate seamlessly into various parts of your application. Here's an example implementation of a generic Stack<T> in Dart: class Stack<T> {   final List<T> _stack = [];   void push(T value) {     _stack.add(value);   }   T pop() {     if (_stack.isEmpty) { ...