ren "HTML-Introduction.pdf"           "Ch  1  HTML-Introduction.pdf" 
ren "HTML-Getting-Started.pdf"        "Ch  1x HTML-Getting-Started.pdf" 
ren "HTML-Frames.pdf"                 "Ch  4  HTML-Frames.pdf" 
ren "HTML-CSS.pdf"                    "Ch  5  HTML-CSS.pdf" 
ren "Java-Introduction.pdf"           "Ch  6  Java-Introduction.pdf" 
ren "Java-OOP.pdf"                    "Ch  7a Java-OOP.pdf" 
ren "Java-Advanced-OOP.pdf"           "Ch  7b Java-Advanced-OOP.pdf" 
ren "Java-Basic-Syntax.pdf"           "Ch  8a Java-Basic-Syntax.pdf" 
ren "Java-IO.pdf"                     "Ch  8b Java-IO.pdf" 
ren "Applets-and-Graphics.pdf"        "Ch  9  Applets-and-Graphics.pdf" 
ren "Java-2D.pdf"                     "Ch 10  Java-2D.pdf" 
ren "Java-Events.pdf"                 "Ch 11  Java-Events.pdf" 
ren "Layout-Managers.pdf"             "Ch 12  Layout-Managers.pdf" 
ren "AWT-Components.pdf"              "Ch 13  AWT-Components.pdf" 
ren "Basic-Swing.pdf"                 "Ch 14  Basic-Swing.pdf" 
ren "Advanced-Swing.pdf"              "Ch 15  Advanced-Swing.pdf" 
ren "Multithreaded-Programming.pdf"   "Ch 16a Multithreaded-Programming.pdf" 
ren "Multithreaded-Graphics.pdf"      "Ch 16b Multithreaded-Graphics.pdf" 
ren "Network-Programming-Clients.pdf" "Ch 17a Network-Programming-Clients.pdf" 
ren "Network-Programming-Servers.pdf" "Ch 17b Network-Programming-Servers.pdf" 
ren "RMI.pdf"                         "Ch 17c RMI.pdf" 
ren "Servers-and-Forms.pdf"           "Ch 18  Servers-and-Forms.pdf" 
ren "Servlets.pdf"                    "Ch 19  Servlets.pdf" 
ren "JSP.pdf"                         "Ch 20  JSP.pdf" 
ren "Servers-and-Applets.pdf"         "Ch 21  Servers-and-Applets.pdf" 
ren "Applet-Front-Ends.pdf"           "Ch 21x Applet-Front-Ends.pdf" 
ren "JDBC.pdf"                        "Ch 22  JDBC.pdf" 
ren "XML.pdf"                         "Ch 23a XML.pdf" 
ren "SAX.pdf"                         "Ch 23b SAX.pdf" 
ren "DOM.pdf"                         "Ch 23c DOM.pdf" 
ren "XSLT.pdf"                        "Ch 23d XSLT.pdf" 
ren "JavaScript.pdf"                  "Ch 24  JavaScript.pdf"