LoadedJavaClasses[] returns a list of the classes currently loaded into Java by Mathematica.
SetComplexClass[classname] specifies the Java class to use for complex numbers sent from, and returned to, Mathematica.
SetPeriodicalInterval[id, interval] resets the time interval for the periodical task with the given id.
UseJVM[jvm, body] acts like a wrapper that causes all J/Link calls in body to use the specified JVM as the default Java runtime.
LanguageSyntax is an option to NETTypeInfo that specifies which language syntax will be used to display the type information.
SafeArrayAsArray is an option to LoadCOMTypeLibrary that specifies whether to import all SAFEARRAYs as System.Array rather than a typed, single-dimensional managed array.
SymbolicC supports working with C functions, as described in this section. First, you need to load the package. Now, you can create a C function with CFunction.
SetWidgetReference[name, value] registers a widget with string name in the widget registry for the current interface.
WidgetToSymbolicGUIKitXML[expr] converts a user interface expression to a GUIKitXML SymbolicXML expression.
Widget["Panel"] is an empty container widget.