/**
     * Marks the button as armed or unarmed.
     * 
     * @param b whether or not the button should be armed
     */
    public void setArmed(boolean b);

    /**
     * Selects or deselects the button.
     *
     * @param b <code>true</code> selects the button,
     *          <code>false</code> deselects the button
     */
    public void setSelected(boolean b);

    /**
     * Enables or disables the button.
     * 
     * @param b whether or not the button should be enabled
     * @see #isEnabled
     */
    public void setEnabled(boolean b);

    /**
     * Sets the button to pressed or unpressed.
     * 
     * @param b whether or not the button should be pressed
     * @see #isPressed
     */
    public void setPressed(boolean b);

    /**
     * Sets or clears the button's rollover state
     * 
     * @param b whether or not the button is in the rollover state
     * @see #isRollover
     */
    public void setRollover(boolean b);

    /**
     * Sets the keyboard mnemonic (shortcut key or
     * accelerator key) for the button.
     *
     * @param key an int specifying the accelerator key
     */
    public void setMnemonic(int key);

    /**
     * Gets the keyboard mnemonic for the button.
     *
     * @return an int specifying the accelerator key
     * @see #setMnemonic
     */
    public int  getMnemonic();

    /**
     * Sets the action command string that gets sent as part of the
     * <code>ActionEvent</code> when the button is triggered.
     *
     * @param s the <code>String</code> that identifies the generated event
     * @see #getActionCommand
     * @see java.awt.event.ActionEvent#getActionCommand
     */
    public void setActionCommand(String s);

    /**
     * Returns the action command string for the button.
     *
     * @return the <code>String</code> that identifies the generated event
     * @see #setActionCommand
     */
    public String getActionCommand();

    /**
     * Identifies the group the button belongs to --
     * needed for radio buttons, which are mutually
     * exclusive within their group.
     *
     * @param group the <code>ButtonGroup</code> the button belongs to
     */
    public void setGroup(ButtonGroup group);
    
    /**
     * Adds an <code>ActionListener</code> to the model.
     *
     * @param l the listener to add
     */
    void addActionListener(ActionListener l);

    /**
     * Removes an <code>ActionListener</code> from the model.
     *
     * @param l the listener to remove
     */
    void removeActionListener(ActionListener l);

    /**
     * Adds an <code>ItemListener</code> to the model.
     *
     * @param l the listener to add