public void removeFromTags(String removeTag){
  tags.remove(removeTag);
  firePropertyChange(TAG,null,removeTag);
  firePropertyChange(TAGS_AS_STRING,null,removeTag);
}

public void removeFromTags ( String removeTag ) { tags . remove ( removeTag ) ; firePropertyChange ( TAG , null , removeTag ) ; firePropertyChange ( TAGS_AS_STRING , null , removeTag ) ; }
removes the from tags .
