Thread: what's wrong with my code

import javax.mail.*;
import javax.mail.internet.*;
import java.util.Properties;
public class Access
{
public static void main (String args[])
{
int argc = args.length;
 
if (argc != 4)
{
System.out.println ("Syntax :");
System.out.println (
"java Access protocol host username password");
return;
}
String protocol = args[0];
String host = args[1];
String username = args[2];
String password = args[3];
try
{
 
Properties props=System.getProperties();
props.setProperty("mail.store.protocol", "imaps");
props.setProperty("mail.imap.timeout", "50000");
Session mySession = Session.getDefaultInstance(props, null);
 
 
Store myStore = mySession.getStore(protocol);
myStore.connect (host, username, password);
/********throwing connection timedout exception
host,user password and iinternet coneection are provided correctly********/
 
Folder myFolder = myStore.getFolder("INBOX");
if (myFolder == null)
{
System.err.println ("No default folder available");
return;
}
System.out.println ("Accessing " +
myFolder.getFullName() + " folder");
 
myFolder.open(Folder.READ_ONLY);
int messagecount = myFolder.getMessageCount();
System.out.println (myFolder.getFullName() + " has "
+ messagecount +
" messages.");
Message[] message = myFolder.getMessages ();
for (int i = 0; i < message.length; i++)
{
Address[] fromAddr = message[i].getFrom();
System.out.println (fromAddr[0] + ":" +
message[i].getSubject());
}
myFolder.close(false);
}
catch (MessagingException me)
{
System.err.println ("Messaging failure : " + me);
}
catch (Exception ex)
{
System.err.println ("Failure : " + ex);
}
}
}