# File Input/Output

Reading data from files and writing data to files.

## What is **File Input/Output** in Java?

**File Input/Output** — Reading data from files and writing data to files.

```java
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;

class OrderFile {
    String read(Path path) throws IOException {
        return Files.readString(path);
    }
}
```

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

Updated: September 27, 2026

## In other subjects

- [File Input/Output in C#](https://www.ask-codey.com/glossary/file-input-output-c-sharp)

Source: https://www.ask-codey.com/glossary/file-input-output