import org.apache.commons.net.ftp.FTPClient;  import java.io.FileInputStream;  import java.io.IOException;    public class FtpFileUpload {        public static void main(String[] args) {            FTPClient client = new FTPClient();          FileInputStream fis = null;            try {              client.connect("ftp.javacodegeeks.com");              client.login("username", "password");                // Create an InputStream of the file to be uploaded              String filename = "test.txt";              fis = new FileInputStream(filename);                // Store file on server and logout              client.storeFile(filename, fis);              client.logout();            } catch (IOException e) {              e.printStackTrace();          } finally {              try {                  if (fis != null) {                      fis.close();                  }                  client.disconnect();              } catch (IOException e) {                  e.printStackTrace();              }          }      }  }