This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
If you are talking about the icon in the upper left corner of the application (in a JFrame for example), you can use the setIconImage method. To have your gif image as the application icon do: setIconImage(Toolkit.getDefaultToolkit().createImage(MyJFrame.class.getResource("myImages/MyLogo16x16.gif"))); HTH