java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/database_name..

// JDBC driver name and database URL
   static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
   static final String DB_URL = "jdbc:mysql://localhost:3306/program1";

   //  Database credentials
   static final String USER = "user";
   static final String PASS = "pass";

   private static Connection conn = null;


   /*
    * Create connection to the DB in singletone
    * */
   protected static Connection getConnection() throws ClassNotFoundException, SQLException
   {
           if(conn==null)
           {
               try
               {
                   // Register JDBC driver
                  //Class.forName(JDBC_DRIVER);

                   // Open connection
                   conn = DriverManager.getConnection(DB_URL,USER,PASS);
               }
               catch ( SQLException e) {
                   // TODO Auto-generated catch block
                   e.printStackTrace();
                   if(conn != null)
                        conn.close();
               }
           }

       return conn;
   }