question: selects k random elements from the given source . concode_field_sep Logger logger concode_elem_sep boolean acceptRepeated concode_elem_sep Pivotable<O> pivotable concode_elem_sep Random r concode_field_sep O getObject concode_elem_sep void enableAcceptRepeated concode_elem_sep O[] selectO concode_elem_sep int max concode_elem_sep PivotResult generatePivots concode_elem_sep PivotResult generatePivots concode_elem_sep long[] selectUnique concode_elem_sep long mapId
target: long [ ] function ( int arg0 , Random arg1 , LongArrayList arg2 , Index < O > arg3 , LongArrayList arg4 ) { return selectUnique ( arg0 , arg1 , arg2 , arg3 , arg4 ) ; }