How to use

addHandler

method

in

com.google.gwt.user.client.ui.TabPanel

@Override
public HandlerRegistration addSelectionHandler(
  SelectionHandler<Integer> handler) {
 return addHandler(handler, SelectionEvent.getType());
}

@Override
public HandlerRegistration addBeforeSelectionHandler(
  BeforeSelectionHandler<Integer> handler) {
 return addHandler(handler, BeforeSelectionEvent.getType());
}

@Override
public HandlerRegistration addBeforeSelectionHandler(
  BeforeSelectionHandler<Integer> handler) {
 return addHandler(handler, BeforeSelectionEvent.getType());
}

@Override
public HandlerRegistration addSelectionHandler(
  SelectionHandler<Integer> handler) {
 return addHandler(handler, SelectionEvent.getType());
}

@Override
public HandlerRegistration addBeforeSelectionHandler(
  BeforeSelectionHandler<Integer> handler) {
 return addHandler(handler, BeforeSelectionEvent.getType());
}

@Override
public HandlerRegistration addSelectionHandler(
  SelectionHandler<Integer> handler) {
 return addHandler(handler, SelectionEvent.getType());
}