question: public void addElement ( Object anObject ) { p_data . add ( anObject ) ; fireIntervalAdded ( this , p_data . size ( ) - 1 , p_data . size ( ) - 1 ) ; if ( p_data . size ( ) == 1 && m_selectedObject == null && anObject != null ) setSelectedItem ( anObject ) ; }
target:  Add Element at the end