Removing a window and adding a new one with swing.

Question

Hi,
A friend of mine recently asked me to add a GUI for a small chat he made, so I thought I'd help him out. I've come across something that's troubled me in the past, and I could never find a solution. What I'm trying to do is make it so a log in window pops up (have that working alright) and then when you press sign in, it removes that window (log in) and adds the main chat window (have this fully functional, too).
If someone could provide an example or point me in the direction of the proper API to look into, so that I don't have to look through them all, I'd be extremely grateful.
Here's an SSCCE example:
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.ListSelectionModel;
import javax.swing.ScrollPaneConstants;
import javax.swing.SwingUtilities;
public class Gui extends JFrame {
     public static final DateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
     public String sessionId;
     public int returnCode;
     public boolean recievedReturnCode;
     public boolean errorConnecting;
     public long lastActionDelay;
     private JScrollPane listScrollPane;
     private JList list;
     private JTextPane console;
     private JButton signInButton;
     private JScrollPane consoleScrollPane;
     private JTextField typingField;
     private DefaultListModel userList;
     private JButton sendButton;
     public static void main(String[] args) {
          try {
               SwingUtilities.invokeAndWait(new Runnable() {
                    public void run() {
                         new Gui().setVisible(true);
          } catch (Exception e) {
               e.printStackTrace();
     public Gui() {
          setResizable(false);
          setSize(500, 500);
          consoleScrollPane = new JScrollPane();
          console = new JTextPane();
          typingField = new JTextField();
          userList = new DefaultListModel();
          sendButton = new JButton();
          initializeLoginWindow();
          setDefaultCloseOperation(EXIT_ON_CLOSE);
     public void initializeLoginWindow() {
          setTitle("Login");
          signInButton = new JButton("Sign in");
          signInButton.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent evt) {
                    initializeChatWindow();
          signInButton.setBounds(5, 100, 75, 20);
          getContentPane().add(signInButton);
          getContentPane().setLayout(new BorderLayout());
          getContentPane().add(new JPanel());
     public void initializeChatWindow() {
          consoleScrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
          consoleScrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED);
          consoleScrollPane.setViewportView(console);
          consoleScrollPane.setBounds(5, 5, 575, 350);
          console.setEditable(false);
          typingField.setEditable(true);
          typingField.setBounds(5, 360, 575, 25);
          list = new JList(userList);
        list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        list.setSelectedIndex(0);
        list.setVisibleRowCount(5);
        listScrollPane = new JScrollPane(list);
          listScrollPane.setBounds(585, 5, 110, 350);
          sendButton.setText("Send");
          sendButton.setBounds(585, 360, 111, 25);
          getContentPane().add(consoleScrollPane);
          getContentPane().add(typingField);
          getContentPane().add(listScrollPane);
          getContentPane().add(sendButton);
          getContentPane().setLayout(new BorderLayout());
          getContentPane().add(new JPanel());
}Thanks in advanced!

Answer 1

jduprez wrote:
I've come across something that's troubled me in the past, and I could never find a solutionWhat is the problem?
a log in window pops up (have that working alright)
and then when you press sign in, it removes that window (log in) and adds the main chat window (have this fully functional, too).Hum, between what is working alright and what is already functional, I fail to see what is missing. Again, what is your problem/question?
If someone could provide an example or point me in the direction of the proper API to look into, so that I don't have to look through them all, I'd be extremely grateful.
[url http://download.oracle.com/javase/tutorial/uiswing/components/frame.html]JFrames and [url http://download.oracle.com/javase/tutorial/uiswing/components/dialog.html]dialogs seem to show enough API usage to do that. Still, I stronlgy encourage you to read the whole Swing tutorial: http://download.oracle.com/javase/tutorial/uiswing/index.html
Incase you didn't see the hyperlink above, here's the SSCCE link: http://www.mediafire.com/?e5e3ci3kbvickla
The "S" in SSCCE stands for "Short" (or, depending on authors, "Simple"). Anyway, a decent SSCCE should fit within a forum post (between code tags please). The whole idea is to provide the simplest thing to people willing to help. No doubtful sites. No non-standard extensions.
Best regards,
The problem is that I cannot seem to remove the first pane, leaving the second one to be drawn on the current one.
In reguards to SSCCE, I always thought it was just a short runnable class example, but I've added the class to the main post. I'll take a look at the API in a few as well.