title: How to solve this issue?
body: <pre><code>static String user="sa",password="root";
  static String url="jdbc:sqlserver://GEETHAM31-PC:1433//SQLEXPRESS";
  DRIVER=com.microsoft.sqlserver.jdbc.SQLServerDriver
  </code></pre>
  
  <p>I just used the above url, password and driver to connect with microsoft sql server 2008 r2 database, but i get the following error.</p>
  
  <blockquote>
    <p>com.microsoft.sqlserver.jdbc.SQLServerException: The port number
    1433//SQLEXPRESS is not valid.    at
    com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:170)
      at
    com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:580)
      at
    com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:841)
      at java.sql.DriverManager.getConnection(Unknown Source)     at
    java.sql.DriverManager.getConnection(Unknown Source)  at
    application.ServerConnection.main(ServerConnection.java:20)</p>
  </blockquote>