question: public UrlCritter addUrlList ( List < String > urls , Context context ) { List < String > savedUrls = urlManager . getUrls ( context ) ; for ( String url : urls ) { if ( ! savedUrls . contains ( url ) ) { savedUrls . add ( url ) ; } } urlManager . saveUrls ( context , savedUrls ) ; return this ; }
target:  Adds a list of urls to the saved list