C# CONCEPTS

Design Pattern - Iterator

According to Gang of Four, the iterator pattern provides a process to obtain the aggregator object without knowing its implementation.

Use Case

Let us take an example of a collection list of cars and string[] an array of motorcycles, we need to design an aggregator object so that one can iterate over the collection without knowing whether it's a list or an array.

The iterator design pattern helps solve this problem wherein a standard iterator will traverse different collection types.

Prerequisites

• Basic knowledge of OOPS concepts.
• Any programming language knowledge.

The article demonstrates the usage of iterator design patterns using the C# programming language. So, to begin with, C#

Introduction to C#

Getting Started

Considering the above use case, let us define a custom iterator interface that…