> For the complete documentation index, see [llms.txt](https://george-jen.gitbook.io/data-science-and-apache-spark/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://george-jen.gitbook.io/data-science-and-apache-spark/scala-objects.md).

# Objects

### Objects

Objects are single instances of their own definitions.

```
object IdFactory {
private var counter = 0
def create(): Int = {
counter += 1
counter
}
}
val newId: Int = IdFactory.create()
println(newId) // 1
val newerId: Int = IdFactory.create()
println(newerId) // 2
```