Java Swing O Reilly The accessibleContext (Web hosting isp) property holds
Java Swing O Reilly The accessibleContext property holds an AccessibleContext object that is the focal point of communication between the component and auxilliary accessibility tools. There’s a different default context for each kind of JComponent. For nore information, see Chapter 25. 3.3.3 Events Table 3.8 shows the events fired by JComponent (not counting the many events it inherits from the AWT classes). Table 3.8, JComponent Events Event Description PropertyChangeEvent A change has occurred in JComponent. A change has occurred in JComponentthat can be vetoed by interested VetoablePropertyChangeEvent listeners. AncestorEvent An ancestor of a JComponent has moved or changed its visible state. 3.3.3.1 Event Methods The following methods may move to java.awt.Component in the future. protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) public void firePropertyChange(String propertyName, byte oldValue, byte newValue) public void firePropertyChange(String propertyName, char oldValue, char newValue) public void firePropertyChange(String propertyName, short oldValue, short newValue) public void firePropertyChange(String propertyName, int oldValue, int newValue) public void firePropertyChange(String propertyName, long oldValue, long newValue) public void firePropertyChange(String propertyName, float oldValue, float newValue) public void firePropertyChange(String propertyName, double oldValue, double newValue) public void firePropertyChange(String propertyName, boolean oldValue, boolean newValue) Fire a PropertyChangeEvent to all registered listeners if newValue differs from oldValue. There are overloaded versions of this method for each primitive data type, as well as a protected version for the generic Object class. protected void fireVetoableChange(String propertyName, Object oldValue, Object newValue) throws PropertyVetoException Fires a vetoable PropertyChangeEvent to all registered listeners if newValue differs from oldValue. public synchronized void addPropertyChangeListener(PropertyChangeListener listener) public synchronized void removePropertyChangeListener(PropertyChangeListener listener) Add and remove a PropertyChangeListener to the event registration list. public synchronized void addVetoableChangeListener(VetoableChangeListener listener) public synchronized void removeVetoableChangeListener(VetoableChangeListener listener) - 68 -
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