question: private boolean stackContains ( Stack stack , String url ) { int n = stack . size ( ) ; boolean contains = false ; for ( int i = 0 ; i < n ; i ++ ) { String url2 = ( String ) stack . elementAt ( i ) ; if ( url2 . equals ( url ) ) { contains = true ; break ; } } return contains ; }
target:  Utility function to see if the stack contains the given URL.