public boolean backupDB(String dbName, String dbUserName, String dbPassword, String path) {

    String[] executeCmd = new String[] {
            "C:\xampp\mysql\bin\mysqldump.exe ",
            "-u",
            dbUserName,
            "-p",
            dbPassword,
            "--add-drop-database",
            "-B",
            dbName,
            "-r",
            path
    };

    final ProcessBuilder pb = new ProcessBuilder(Arrays.asList(executeCmd));
    final Process p;
    try {
        p = pb.start();
        int processComplete = p.waitFor();

        if (processComplete == 0) {
            System.out.println("Backup created successfully");
            return true;
        } else {
            System.out.println("Could not create the backup");
            BufferedReader reader = new BufferedReader(new InputStreamReader(p.getErrorStream()));
            String line = null;
            while ( (line = reader.readLine()) != null) {
                System.out.println(line);
            }
        }
    } catch (IOException | InterruptedException e) {
        e.printStackTrace();
    }
    return false;
}

int processComplete = p.waitFor();

boolean backupDB = backup.backupDB("bd_relatorios", "root", "", "C:\MudinhoX\back.sql");