נסה-עם-משאבים

try (BufferedReader br = new BufferedReader(new FileReader("file.txt"))) {
    String line = br.readLine();
    System.out.println(line);
} catch (IOException e) {
    System.out.println("I/O Error: " + e.getMessage());
}
// br is closed automatically here, even if an exception occurs

try (
    FileReader fr = new FileReader("input.txt");
    FileWriter fw = new FileWriter("output.txt")
) {
    // Use resources
} catch (IOException e) {
    System.out.println("Error: " + e.getMessage());
}

public class DatabaseConnection implements AutoCloseable {
    public void query(String sql) {
        System.out.println("Running query: " + sql);
    }

    @Override
    public void close() {
        System.out.println("Connection closed!");
    }
}