```
public interface TopLevel
```
common toplevel for applets (JApplet) and applications (JFrames)

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`close()`	close and exit the progem
`JFrame`	`getJFrame()`	get the underlying Frame; call only if !isApplet()
`RootPaneContainer`	`getRootPaneContainer()`	get the getRootPaneContainer
`boolean`	`isApplet()`	return true if this is an Applet
`void`	`save()`	save any persistant data

Interface TopLevel