Send mail by a Java Program

import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendMailByJavaProg {
public static void main(String[] args) {
Properties props = new Properties();
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.socketFactory.port", "465");
props.put("mail.smtp.socketFactory.class",
"javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.port", "465");

Session session = Session.getDefaultInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
//You need to put your user name and password here
return new PasswordAuthentication("username","password");
}
});

try {

Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("makecodeeasy@gmail.com"));
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse("makecodeeasyblog@gmail.com"));
message.setSubject("Testing Subject");
message.setText("Welcome to makecodeeasy blog," +
"\n\n Mail from my mail Server!");

Transport.send(message);

System.out.println("Done");

} catch (MessagingException e) {
throw new RuntimeException(e);
}
}
}

You need some jar files for running this program.
Download Link :- javax.mail-1.3.3.01.jar
Download Link :- activation-1.0.2.jar