question: private static int lengthOfPath ( Path2D . Float path ) { FlatteningPathIterator f = new FlatteningPathIterator ( path . getPathIterator ( null ) , 1 ) ; double sum = 0 ; float x1 , x2 , y1 , y2 ; float [ ] coords = new float [ 6 ] ; f . currentSegment ( coords ) ; x1 = coords [ 0 ] ; y1 = coords [ 1 ] ; f . next ( ) ; do { f . currentSegment ( coords ) ; f . next ( ) ; x2 = coords [ 0 ] ; y2 = coords [ 1 ] ; sum += Math . hypot ( x2 - x1 , y2 - y1 ) ; x1 = x2 ; y1 = y2 ; } while ( ! f . isDone ( ) ) ; return ( int ) sum ; }
target:  Return the length of the given path