how to download file from ftp server

Ftp ftp = new Ftp("192.168.2.20","ftp","ftp");

// establish connection
ftp.connect();

ftp.upload(new File(filetext.getText()));


System.out.println("file upload sucess");
ftp.disconnect();
System.out.println("ftp close");

this code works fine for me to transfer file through ftp.i want to download
same file from my ftp server.can any one help me

thanks
santhosh