What are the differences between List and an array in C#? Arrays

Hello Kiran, Here are key differences between both, Size Arrays have a fixed size Lists resize automatically. Namespace Arrays are built-in Lists need System.Collections.Generic. Performance Arrays are slightly faster due to no resizing overhead. Features Arrays offer basic functionality Lists provide rich helper methods. Memory Arrays allocate memory upfront Lists grow as needed. Initialization Arrays use new T[size] Lists use collection initializers. Use Case Arrays are ideal for fixed data Lists suit dynamic or unknown sizes. LINQ Support Arrays support LINQ with conversion Lists support LINQ directly.

In C#, both List and arrays are used to store collections of elements, Array : Fixed size. Once created, its size cannot be changed. int[] numbers = new int[5]; // Fixed size List : Dynamic size. It can grow or shrink as needed using methods like Add() , Remove() , etc. List numbers = new List(); // Dynamic size

Answers

What are the differences between List<T> and an array in C# Arrays

Kiran Kumar

139

What are the differences between List<T> and an array in C#? Arrays

Answers (2)

Next Recommended Forum

What is the difference between static, public, and void

Forum Statistics

Please welcome our newest member Lantos Enikő.
3,092,404 users have contributed to 147,404 threads and 483,623
In the past 24 hours, we have 5 new threads, 20 new posts, and 111 new users.
In last week, the most popular thread is 'What is the difference between static, public, and void'.

Upcoming Events

View all

Live Discussion on Startups, AI, and Career Growth
Proactive Customer Support with Email Sentiment Analysis: Automate Your Business Processes - Ep.8
Software Architecture Conference - 2025