System properties accessible to applets : Applet « Development « Java Tutorial

file.separatorFile separator (for example, "/")
java.class.versionJava class version number
java.vendorJava vendor-specific string
java.vendor.urlJava vendor URL
java.versionJava version number
line.separatorLine separator
os.archOperating system architecture
os.nameOperating system name
path.separatorPath separator (for example, ":")

6.28.2.A real applet
6.28.3.Add JButton to JApplet
6.28.4.Access applet parameters
6.28.5.An Swing-based applet skeleton
6.28.6.Swing Applet
6.28.7.A simple Swing-based applet
6.28.8.Mini Appletviewer
6.28.9.Tic Tac Toe game
6.28.10.WeatherWizard JApplet
6.28.11.Change an applet background color
6.28.12.Read an applet parameters
6.28.13.Calling methods of an Applet from JavaScript code
6.28.14.Passing Parameters to Java Applet
6.28.15.Display message in browser status bar
6.28.16.System properties accessible to applets