ImageIcon iconDuke = new ImageIcon(imgFilename) // OR
Can use an absolute filename such as 'c:/project/images/nought.gif' For example, // Construct an ImageIcon from an image filename Image file type of GIF, PNG, JPG and BMP are supported. To construct an ImageIcon, provide the image filename or URL. The ImageIcon class implements interface, and hence, often upcasted and referenced as Icon. An ImageIcon is a fixed-size picture, typically small, and mainly used for decorating GUI components. For example, the figure shows three buttons: one with text label, one with an image icon, and one with both text and icon. Many Swing's JComponents (such as JLabel and JButton) support a text label and an image icon. JComponent and its descendants are lightweight components.
The class hierarchy of Swing's JComponents is as follows. These top-level Swing containers are heavyweight, that rely on the underlying windowing subsystem of the native platform. The class hierarchy of Swing's top-level containers ( JFrame, JDialog, JApplet) are as follows. JDK demo includes a folder ' jfc', which has many interesting demo on Swing and Java2D.
