Can someone please help with the following code
If (a===b)
//then send email using java mail API

How do I code above?
 

Look thru java mail API's there are methods like
public void sendMail() etc.

You need to follow a few steps as given below:

//Create an instance of properties
    Properties props = new Properties();
    //Setup mail server
    Authenticator auth = new PopupAuthenticator();
    //Set the Servername and hostname of email Server
    props.put(
     ConfigHelper.getProperty(HOST_NAME),
     ConfigHelper.getProperty(SERVER_NAME));
    props.put("mail.smtp.auth", "true");

    //Get session
    Session session = Session.getInstance(props, auth);
    //Create Message instance for email content
    Message msg = new MimeMessage(session);
    //senders mail id
    Address loggerId = new InternetAddress(sender, sender);
    //Set the from email id
    msg.setFrom(loggerId);
    multipleEmailsSplit(receiver, msg, Message.RecipientType.TO);
    if ((receiverCC != null) && !receiverCC.equals("null")) {
     multipleEmailsSplit(receiverCC, msg, Message.RecipientType.CC);
    }
    if ((receiverBCC != null) && !receiverBCC.equals("null")) {
     multipleEmailsSplit(receiverBCC, msg, Message.RecipientType.BCC);
    }
    msg.setSubject(subject);
    MimeBodyPart mbp = new MimeBodyPart();
    mbp.setContent(emailContent, "text/html");
    // create the Multipart and add its parts to it
    Multipart mp = new MimeMultipart();
    mp.addBodyPart(mbp);
    //attach files to e-mail
    for (int i = 0; i < fileList.size(); i++) {
     String file = (String) fileList.get(i);
     MimeBodyPart mbp2 = new MimeBodyPart();
     FileDataSource fds = new FileDataSource(file);
     mbp2.setDataHandler(new DataHandler(fds));
     mbp2.setFileName(fds.getName());
     mp.addBodyPart(mbp2);
}
    // add the Multipart to the message
    msg.setContent(mp);
    //Send the mail
    Transport.send(msg);

or

-  Create the mail session object  (or get/lookup the session from your app server using JNDI)
-  Compose message, set/add recipient(s)
-  Send using Transport's static send method

Properties props = new Properties();
props.put("mail.smtp.host", "mailserver.com");
Session s = Session.getInstance(props,null);

InternetAddress from = new InternetAddress("mail@...");
InternetAddress to = new InternetAddress(recepeint@...");

MimeMessage message = new MimeMessage(s);
message.setFrom(from);
message.addRecipient(Message.RecipientType.TO, to);

message.setSubject("Your subject");
message.setText("Your text");
Transport.send(message);

If you lookup up the session using JNDI you configure mail server (smtp host) in your app server configuration

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