Module java.desktop
Package javax.swing

Class JApplet

All Implemented Interfaces:
ImageObserver, MenuContainer, Serializable, Accessible, RootPaneContainer

@Deprecated(since="9", forRemoval=true) @JavaBean(defaultProperty="JMenuBar", description="Swing\'s Applet subclass.") public class JApplet extends Applet implements Accessible, RootPaneContainer
Deprecated, for removal: This API element is subject to removal in a future version.
The Applet API is deprecated, no replacement.
An extended version of java.applet.Applet that adds support for the JFC/Swing component architecture. You can find task-oriented documentation about using JApplet in The Java Tutorial, in the section How to Make Applets.

The JApplet class is slightly incompatible with java.applet.Applet. JApplet contains a JRootPane as its only child. The contentPane should be the parent of any children of the JApplet. As a convenience, the add, remove, and setLayout methods of this class are overridden, so that they delegate calls to the corresponding methods of the ContentPane. For example, you can add a child component to an applet as follows:

       applet.add(child);
 
And the child will be added to the contentPane. The contentPane will always be non-null. Attempting to set it to null will cause the JApplet to throw an exception. The default contentPane will have a BorderLayout manager set on it. Refer to RootPaneContainer for details on adding, removing and setting the LayoutManager of a JApplet.

Please see the JRootPane documentation for a complete description of the contentPane, glassPane, and layeredPane properties.

Warning: Swing is not thread safe. For more information see Swing's Threading Policy.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans has been added to the java.beans package. Please see XMLEncoder.

Since:
1.2
See Also:
RootPaneContainer
  • Field Details

    • rootPane

      protected JRootPane rootPane
      Deprecated, for removal: This API element is subject to removal in a future version.
      See Also:
      getRootPane(), setRootPane(javax.swing.JRootPane)
    • rootPaneCheckingEnabled

      protected boolean rootPaneCheckingEnabled
      Deprecated, for removal: This API element is subject to removal in a future version.
      If true then calls to add and setLayout will be forwarded to the contentPane. This is initially false, but is set to true when the JApplet is constructed.
      See Also:
      isRootPaneCheckingEnabled(), setRootPaneCheckingEnabled(boolean), RootPaneContainer
    • accessibleContext

      protected AccessibleContext accessibleContext
      Deprecated, for removal: This API element is subject to removal in a future version.
      AccessibleContext associated with this JApplet
  • Constructor Details

  • Method Details