Developing Java Beans reject an unacceptable change to
Developing Java Beans Let’s take a look at the code for the NumberLabel class first: import java.applet.*; import java.awt.*; import java.awt.event.*; import java.beans.*; import BeansBook.util.*; // the NumberLabel classclass NumberLabel extends Label implements PropertyChangeListener { // the support object for bound listenersprotected PropertyChangeSupport boundSupport; // the support object for constrained listeners protected VetoableChangeSupport vetoSupport; // the implementation of the Value property protected int theValue = 15; // constructor public NumberLabel(String text) { // call the super class super(text); // construct the support objects boundSupport = new PropertyChangeSupport(this); vetoSupport = new VetoableChangeSupport(this); } // add a bound property listenerpublic void addPropertyChangeListener(PropertyChangeListener l) { // defer to the support object boundSupport.addPropertyChangeListener(l); } // remove a bound property listenerpublic void removePropertyChangeListener(PropertyChangeListener l) { page 65
Note: If you are looking for high quality webhost to host and run your jsp application check Vision jsp hosting services