Why do I receive an error about java

hi , i have this error

any body can help?

Function 'MATLAB Function9' (#271.286.309), line 9, column 1: "import java.net.Socket" Launch diagnostic report.

Component: MATLAB Function | Category: Coder error

line in commond window : import java.net.Socket

Import statements are currently unsupported. Function 'MATLAB Function9' (#271.309.326), line 10, column 1: "import java.io.*" Launch diagnostic report.

Component: MATLAB Function | Category: Coder error

line:import java.io.*

[Nikhil Sapre]

Hi Ehsan,

What version of MATLAB are you using?

Can you post snippet of your code that is running into errors?

[Ehsan Akhavast]

hi dear

thanks for your attention

2021a

yeah

this file is about connecting flightgear to simulink

function wp_dist_m =get_wpdist(host, port)

% [WP_DIST_M]=GET_WPDIST(HOST, PORT)

%

% Read distance WP_DIST of aircraft from current waypoint in

% Flightgear over socket connection (HOST, PORT).

% Run Flightgear on HOST (e.g. '127.0.0.1' = localhost) with

% parameter "--props = PORT".

import java.net.Socket

import java.io.*

fg_socket = Socket(host, port);

out = PrintWriter(fg_socket.getOutputStream(), true);

in = BufferedReader(InputStreamReader(fg_socket.getInputStream()));

% waypoint distance meter

out.println(sprintf('get /autopilot/route-manager/wp/dist\r\n'));

wp_dist_m_str = char(in.readLine());

j = strfind(wp_dist_m_str,'''');

%Conversion from sea miles (nm) to meter

wp_dist_m = str2double(wp_dist_m_str(j(1)+1:j(2)-1)) * 1852;

out.close();

in.close();

fg_socket.close();

end

[Nikhil Sapre]

And how are you calling this function?

[Ehsan Akhavast]

i want to connecting matlab to flightgear simulator .

this code is apart of 13 code that was from below link .

https://www.mathworks.com/matlabcentral/fileexchange/25047-flightgear-route-manager