list files on the java server

[cmp_sft]

hi everyone.
ı do java project. the project is transfer client and server files. but ı want to display list of the servers files on the client .
sorry my English.

[cmp_sft]

hi everyone.
ı found my problem
code
public void Display(){

JFrame frame = new JFrame();
frame.setTitle("Client");

FlowLayout layout = new FlowLayout();
layout.setAlignment(FlowLayout.LEFT);

JLabel lblFile = new JLabel("Filename:");

txtFile = new JTextField();
txtFile.setPreferredSize(new Dimension(150,30));

JButton btnTransfer = new JButton("Transfer");
btnTransfer.addActionListener(this);

JPanel mainPanel = new JPanel();
mainPanel.setLayout(layout);
mainPanel.add(lblFile);
mainPanel.add(txtFile);
mainPanel.add(btnTransfer);

frame.getContentPane().add(mainPanel);
frame.pack();
frame.setVisible(true);
}