sets the last name for this student . concode_field_sep int studentId concode_elem_sep String firstName concode_elem_sep String lastName concode_elem_sep String address concode_field_sep int getStudentId concode_elem_sep void setAddress concode_elem_sep void setFirstName concode_elem_sep String clear concode_elem_sep String getAddress concode_elem_sep void setStudentId concode_elem_sep String getFirstName concode_elem_sep String getLastName
void function ( String arg0 ) { this . lastName = arg0 ; }