question: set a new opponent 's weight . should be negative or zero concode_field_sep String teamName concode_elem_sep int weight concode_elem_sep Player player concode_field_sep String getPlayerNick concode_elem_sep void changeWeight concode_elem_sep int getWeight concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep Opponent clone concode_elem_sep String toString concode_elem_sep int compareTo concode_elem_sep String getTeamName
target: void function ( int arg0 ) { this . weight = arg0 ; }