What does the following Java code output when reading a binary file named "file.jpg" that contains at least one byte of data?

import java.io.FileInputStream;
import java.io.IOException;
public class ReadBinary {
    public static void main(String[] args) {
        try (FileInputStream fIn = new FileInputStream("file.jpg")) {
            System.out.println(fIn.read());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}