# this

A reference to the current object inside its instance code.

## What is **this** in Java?

**this** — A reference to the current object inside its instance code.

```java
class Book {
    String title;

    Book(String title) {
        this.title = title;
    }
}
```

Level: Journeyman · [More Java terms at this level](https://www.ask-codey.com/glossary/subjects/java/journeyman)

Updated: September 27, 2026

## In other subjects

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

Source: https://www.ask-codey.com/glossary/this