Doesn't loop a while(true) !!!

Question

I made an Client Chat applet, but for some reason it doesn't do the read/write part to the socket that happens while(true)!!!
Well, actually it doesn't even load the screen! I mean the layout...
As you can see, wrote some System.out.println() to see where it gets stuck, and gets up to "7" and stops - it writes "7" only once and it's in a while(true)!!!
Please help me...
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.io.*;
import java.net.*;
public class main extends Applet {
  boolean sent = false;
  String senttxt = null;
  TextArea maintext = new TextArea(17,50);
  TextField sendtext = new TextField(40);
  Button send = new Button("Send!");
  public void init() {
    setLayout(new FlowLayout());
    add(maintext);
    add(sendtext);
    add(send);
    maintext.setEditable(false);
    cmain();
    catch(Exception e) {
      System.out.println(7);
  public main() {
  /**Construct the applet*/
  private void cmain() {
        Socket echoSocket = null;
        PrintWriter out = null;
        BufferedReader in = null;
        System.out.println(1);
        try {
            echoSocket = new Socket("127.0.0.1", 4445);
              System.out.println(2);
            out = new PrintWriter(echoSocket.getOutputStream(), true);
              System.out.println(3);
            in = new BufferedReader(new InputStreamReader(echoSocket.getInputStream()));
              System.out.println(4);
        } catch (UnknownHostException e) {
            maintext.append("Couldn't find server - maybe offline");
            System.out.println("Couldn't find server - maybe offline");
        } catch (IOException e) {
            maintext.append("There was a problem connecting server");
            System.out.println("There was a problem connecting server");
          System.out.println(5);
        BufferedReader stdIn = new BufferedReader(new StringReader("User Connected!\n"));
          System.out.println(6);
        try {
          while (true) {
            System.out.println(7);
              if(sent) {
                stdIn = new BufferedReader(new StringReader(senttxt+"\n"));
                try { out.println(stdIn.readLine()); } catch (IOException e) { }
                senttxt = null;
                sent=false;
                System.out.println(8);
              try { maintext.append(in.readLine()); } catch (IOException e) { System.out.println(9); }
        } finally {
          System.out.println(8);
          out.close();
          try { in.close(); } catch (IOException e) { }
          try { stdIn.close(); } catch (IOException e) { }
          try { echoSocket.close(); } catch (IOException e) { }
  public boolean action(Event evt, Object arg) {
    if(evt.target instanceof Button || evt.target instanceof TextField) {
      senttxt = sendtext.getText();
      sendtext.setText("");
      sent=true;
      return true;
    return false;
}

Answer 1

I gess your program stops waiting in the in.readLine() on the "try { maintext.append(in.readLine()); } catch (IOException e) { System.out.println(9); }" sentence.
First time your program enters the while(true) it writes the "7", then goes directly to that sentence because sent==false. When reading something from in, it should write "7" again.