How to add valueChange Event to a Text field

I have the following code and I am trying to create an event when a value changes in a Text field, but the event never fires. What am I doing wrong?

public AddressForm() {

private final TextField _zipCode;

public class AddressForm extends Form implements ClickListener, Property.ValueChangeListener {

_zipCode = (TextField) getField("zipcode");
_zipCode.setImmediate(true);
_zipCode.addListener(this);

}

@Override
public void valueChange(Property.ValueChangeEvent event) {
if (event.getProperty() == _zipCode) {
updateZipCity();
}
}
}

Thank You

Peter

Your code doesn't appear to be legal Java...confusing constructors and class declarations. You need something more like:

import com.vaadin.data.Property;
import com.vaadin.ui.Form;
import com.vaadin.ui.TextField;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;

public class AddressForm extends Form implements ClickListener, Property.ValueChangeListener {

private final TextField _zipCode;

public AddressForm() {
	_zipCode = (TextField) getField("zipcode");
	_zipCode.setImmediate(true);
	_zipCode.addListener(this);

}

@Override
public void valueChange(Property.ValueChangeEvent event) {
	if (event.getProperty() == _zipCode) {
		updateZipCity();
	}
}

@Override
public void buttonClick(ClickEvent event) {
	// TODO Auto-generated method stub
	
}

}

Sorry!
Actually the code you entered is what I have, I messed up my code when I was pasting ii into the message.

the only difference I have is I don't have the ' @Override' on the public void valueChange(ValueChangeEvent event)

public void valueChange(ValueChangeEvent event) {
Property property = event.getProperty();
}

If I add @Override I get error message ' method does not override or implement a method from a supertype
@Override'

@Override
public void valueChange(ValueChangeEvent event) {
Property property = event.getProperty();
}

I am using vaadin-6.3.0.nightly-20100406-c12338.jar

I don't know what I did, probably fixed one of the imports, but it's working now.

Thank You