Change file access in FTP

Question

Hi, i'm new in java and i'm trying to make a program that moves a file to a FTP server, I already made that part of the program.
but i'm having problems finding the way of change the access of the file, when was already moved it.
This is an example of the code that i'm using to do the first part.
import java.io.*;
import java.net.*;
import java.util.*;
public class FTPConnection {
public boolean connect(String host)
throws UnknownHostException, IOException
return connect(host, 21);
public boolean login(String username, String password)
throws IOException
int response = executeCommand("user " + username);
if (!isPositiveIntermediateResponse(response)) return false;
response = executeCommand("pass " + password);
loggedIn = isPositiveCompleteResponse(response);
return loggedIn;
public boolean uploadFile(String serverPath, String localPath)
throws IOException
return writeDataFromFile("stor " + serverPath, localPath);
public boolean changeDirectory(String directory)
throws IOException
int response = executeCommand("cwd " + directory);
return isPositiveCompleteResponse(response);
I already have the code to take the file and move it to the server but i can't find the way to change the access.
I hope someone can help me with this thanks.

Answer 1

I already tried to use chmod but it doesn't work this is the example that i made
public boolean changePermissions(String Path)
throws IOException
int response = executeCommand("chmod 777 " + Path);
return isPositiveCompleteResponse(response);
but the file continue with the same permission. So i was wondering if i'm doing something wrong or is other way to do it.
Thanks for your help