i m trying to access to a servlet runnig on the tomcat server on my own pc. my MIDlet compiles bt gives exception at thr run time... i am at u can say begginers level

here is my full code......


if anyone of u can spare some time...i wld b thankfull

import javax.microedition.midlet.*;

import javax.microedition.lcdui.*;

import javax.microedition.io.*;

import java.util.*;

import java.io.*;

public class WelcomeMidlet extends MIDlet implements CommandListener

{

private Display display;

private Form f1, f2, f3;

private TextField tf1, tf2;

private String url, name, serv;

private Alert a1, a2;

private Command exit, submit1, submit2, back1, back2;

public WelcomeMidlet()

{

display = Display.getDisplay(this);

a1 = new Alert("", " Connection Established!", null,

AlertType.INFO);

a2 = new Alert("", " Connection Failed to Establish!", null,
AlertType.INFO);

f1 = new Form("Connect to server");

tf1 = new TextField("Enter url:", "", 25, TextField.ANY);

exit = new Command("Exit", Command.EXIT, 1);

submit1 = new Command("Submit", Command.OK, 1);

f1.append(tf1);

f1.addCommand(exit);

f1.addCommand(submit1);

f1.setCommandListener(this);

f2 = new Form("Enter name");

tf2 = new TextField("Enter name:", "", 20, TextField.ANY);

back1 = new Command("Back", Command.BACK, 1);

submit2 = new Command("Submit", Command.OK, 1);

f2.append(tf2);

f2.addCommand(back1);

f2.addCommand(submit2);

f2.setCommandListener(this);

f3 = new Form("Enter name");

f3.setCommandListener(this);

}

public void startApp() throws MIDletStateChangeException {

display.setCurrent(f1);

}

public void pauseApp() {

}

public void destroyApp(boolean un) {

}

public void commandAction(Command c, Displayable displayable)

{

if (c == exit)

{

destroyApp(false);

notifyDestroyed();

}

else if (c == submit1) {

url = tf1.getString();

}

else if (c == back1) {

display.setCurrent(f1);

}

else if (c == submit2) {

name = tf2.getString();

serv = new String(url + "?" + "name=" + name);

conn(serv);

}

}

HttpConnection con1 = null;

InputStream in = null;

StringBuffer buffer = new StringBuffer();

public void conn(String serv) {

try {

con1 = (HttpConnection) Connector.open(serv);

display.setCurrent(a1);

display.setCurrent(f3);

in = con1.openInputStream();

int ch;

while ((ch = in.read()) != 1)

{

buffer.append((char) ch);

}

String line = new String(buffer.toString());

f3.append(line);

} catch (IOException e) {

a2.setTimeout(Alert.FOREVER);

display.setCurrent(a2);

}

}
}