Sending email using SmtpClient class error???

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Hi All
I'm trying to send emailusing smtpClient,I'm getting error says :"connection refused :no further information ".
I'm sure i'm supplying wrong arguments to from() and to() methods.
please take a look at my code and correct the argument.
thanks alot for your time.
import java.io.*;
import sun.net.smtp.SmtpClient;
import java.net.InetAddress;
import java.util.*;

public class senEmail
{
public static void main(String arg[])
{
PrintStream outMail;
SmtpClient sendmail;

try
{
sendmail = new SmtpClient("

http://www.yahoo.com");

sendmail.from("mohseif@yahoo.com"
sendmail.to("bay68@yahoo.com"

outMail = sendmail.startMessage();

outMail.println("from :tester"
outMail.flush();
outMail.close();
sendmail.closeServer();

}
catch(Exception e)
{

System.out.println(e.getMessage());
}

}

}