method to represent a vertex by its name concode_field_sep Vertex parent concode_elem_sep int distance concode_elem_sep List<Edge> Adj concode_elem_sep int name concode_elem_sep int index concode_elem_sep List<Edge> revAdj concode_elem_sep boolean seen concode_field_sep int getIndex concode_elem_sep void putIndex concode_elem_sep int compareTo
String function ( ) { return Integer . toString ( name ) ; }