question: reset the loop counter . concode_field_sep StringBuilder builder concode_elem_sep int index concode_field_sep void appendExceptFirst concode_elem_sep int length concode_elem_sep void appendOnlyFirst concode_elem_sep String toString concode_elem_sep StatementBuilder append concode_elem_sep StatementBuilder append concode_elem_sep StatementBuilder append
target: StatementBuilder function ( ) { index = 0 ; return this ; }