Server/Client from JButtonl

Server is a class. when i run the server separetly with its main it works fine. and now i wanna run it from a button (JFrame application having 2 buttons: Server Start && Client Start)

for the Server Start button:

Java Code:

JButton btnserver = new JButton("Start Server");
                btnserver.addActionListener(new ActionListener() {

                        public void actionPerformed(ActionEvent e) {
                                Server s = new Server();
                                s.run();        
                        }
});

for the Client Start button:

Java Code:

JButton btnclient = new JButton("Start Client");
                btnclient.addActionListener(new ActionListener() {
                        public void actionPerformed(ActionEvent e) {
                                Client c = new Client();
                                c.run();
                        }
                });