The provided code demonstrates the usage of the `PropertyChangeSupport` class to fire property change events when a property value is updated. The `main` method creates an instance of the `Main` class and adds a `PropertyChangeListener` that listens to property changes and prints the new value when a change is detected. When `main.setName("Java")` is called, the `PropertyChangeSupport` fires a property change event. The listener catches this event and outputs the new value, resulting in the output 'Changed to Java'.