> For the complete documentation index, see [llms.txt](https://educacion.gitbook.io/programacion/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://educacion.gitbook.io/programacion/ud5-entrada-e-saida-da-informacion/ficheiros/excepciones-entrada-saida/try-with-resources.md).

# Try-with-resources

O **`try-with-resources`** é unha forma de xestionar recursos que implementan a interface **`AutoCloseable`** (como ficheiros, fluxos de entrada/saída ou conexións de base de datos), garantindo que **se pechen automaticamente** ao final do bloque, incluso se ocorre unha excepción.

```java
try (Resource r = new Resource()) {
    // usar o recurso
} catch (Exception e) {
    // xestionar excepción
}
```

## ¿Por que empregalo?

* Evita **fugas de recursos** (como esquecer pechar un ficheiro).
* O recurso **pechase automaticamente** ao saír do bloque `try`.
* Reduce a cantidade de código, eliminando a necesidade de `finally`.
* Funciona con **calquera clase que implemente AutoCloseable**

## Exemplo con BufferedReader

```java
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class EjemploTryWithResources {
    public static void main(String[] args) {
        try (BufferedReader br = new BufferedReader(new FileReader("fichero.txt"))) {
            String linea;
            while ((linea = br.readLine()) != null) {
                System.out.println(linea);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
```


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