private void whileChatting() throws IOException {
// TODO Auto-generated method stub
String message = "You are now connected";
sendMessage(message);
ableToType(true);
do {
try {
message = (String) input.readObject();
showMessage("\n" + message);
} catch (ClassNotFoundException e) {
showMessage("Cannot receive message!");
}
} while (!message.equals("ME - BYE"));
}
public boolean doUsername(String x) {
try {
if (x == null) {
return false;
}
if (x.equals("")) {
return false;
}
String old = username;
username = x;
toUser.println("USERNAME_RQUEST");
toUser.println(username);
toUser.flush();
// System.out.println("sent username");
// keep doing until has a username that is unused
String reply = fromUser.readLine();
// System.out.println("this is the reply:" + reply);
while (reply.equals("USERNAME_USED")) {
String temp =
JOptionPane.showInputDialog(
null,
"Please enter a new username, \""
+ username
+ "\" has been taken on this server or is invalid.");
if (temp == null) {
return false;
}
username = temp;
toUser.println(username);
toUser.flush();
reply = fromUser.readLine();
// System.out.println("This is reply" + reply);
}
String t = username;
username = old;
sendMessage("set my new username to: " + t);
username = t;
JOptionPane.showMessageDialog(
null, "Username \"" + username + "\" has been accepted by the server.");
return true;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return false;
}
}