<RUTA_DE_MYSQL>mysqldump --opt --password=<CONTRASEÑA> --user=root <BASE_DE_DATOS> > <RUTA_DE_DESTINO>Backup.sql

private static void backup() {
    //Carpeta que contendra el Backup:
    File carpeta = new File(<RUTA_CONTENEDORA_BACKUP>);
    carpeta.mkdirs();
    //*
    //Creacion del .sql
    Runtime runtime = Runtime.getRuntime();
    File backup = new File(<RUTA_CONTENEDORA_BACKUP> + "\Backup.sql");
    try {
        InputStreamReader isr;
        BufferedReader br;
        FileWriter fileWriterGeneral = new FileWriter(backup);
        Process child = runtime.exec("<RUTA_DE_MYSQL>\mysqldump  --opt --user=root --password=<CONTRASEÑA>--databases <CONTRASEÑA> -R");
        isr = new InputStreamReader(child.getInputStream());
        br = new BufferedReader(isr);
        //*
        //Pasar todo al .sql
        String line;
        while ((line = br.readLine()) != null) {
            fileWriterGeneral.write(line + " n");
        }
        isr.close();
        br.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

-- Dump completed on <FECHA_DEL_BACKUP> <HORA_DEL_BACKUP>

//Pasar todo al .sql
    String line;
    while ((line = br.readLine()) != null) {
        System.out.println(line);
        fileWriterGeneral.write(line + " n");
    }