J2EE Messaging 887 Sending a Message The following short example is a JMS client that sends console input to MyJMSQueue until a q or Q is entered. The code is on the Web site in the Sender.java file: package ptp; import common.*; import java.io.*; import javax.jms.*; import javax.naming.*; public class Sender {   private QueueConnection queueConnection = null;   private QueueSession queueSession = null;   private Queue queue = null;   private QueueSender queueSender = null;   private TextMessage message;   public Sender() throws NamingException, JMSException   {     // Obtain an initial context - JMS Vendor Specific     InitialContext ctx = WeblogicJMSDetails.getInitialContext();     // Look up the connection factory     QueueConnectionFactory queueConFactory = (QueueConnectionFactory) ctx.lookup(WeblogicJMSDetails.JMS_CONNECTION_FACTORY);     // Create a connection     queueConnection = queueConFactory.createQueueConnection();     // Create a session     queueSession = queueConnection.createQueueSession(false,Session.AUTO_ACKNOWLEDGE); After the constructor sets up the connection and the session it looks up the MyJMSQueue and then creates a queue sender. The createSender(Queue queue) creates a sender on the specified queue (in this case, MyJMSQueue):     // Look up the queue     queue = (Queue)ctx.lookup(WeblogicJMSDetails.QUEUE_NAME);     // Create a sender on the queue     queueSender = queueSession.createSender(queue);     // Create a message object     message = queueSession.createTextMessage();     // Start up the connection so we can send messages.     queueConnection.start();   }