# Instance

An object created from a class; each instance has its own data.

## What is **Instance**?

An **instance** is an object made from a class. "Rex is an instance of `Dog`" means Rex was built from the `Dog` template. Each instance has its own copy of the data.

```csharp
var rex = new Dog { Name = "Rex" };   // one instance
var bella = new Dog { Name = "Bella" }; // another instance
```

Level: Novice · [More OOP terms at this level](https://www.ask-codey.com/glossary/subjects/oop/novice)

Updated: September 27, 2026

## In other subjects

- [Instance in C#](https://www.ask-codey.com/glossary/instance-c-sharp)
- [Instance in Java](https://www.ask-codey.com/glossary/instance-java)
- [Instance in JavaScript](https://www.ask-codey.com/glossary/instance-javascript)

Source: https://www.ask-codey.com/glossary/instance-oop