returns the same hash for any vertices that have the same start and end parameters . the weight of the vertex does not affect the hash . concode_field_sep int distance concode_elem_sep String name concode_elem_sep City start concode_elem_sep City end concode_field_sep int getValue concode_elem_sep boolean contains concode_elem_sep String getName concode_elem_sep City getStart concode_elem_sep int getWeight concode_elem_sep void setStart concode_elem_sep boolean equals concode_elem_sep void setWeight concode_elem_sep Trip clone concode_elem_sep void setEnd concode_elem_sep City getEnd
int function ( ) { return Objects . hash ( start , end ) ; }