<s>[INST] return the n'th byte down the stack , where 0 is the top element and size -1 is the bottom element . concode_field_sep ArrayByteList list concode_field_sep byte pop concode_elem_sep int search concode_elem_sep int size concode_elem_sep byte get concode_elem_sep void clear concode_elem_sep byte push concode_elem_sep boolean empty [/INST] byte function ( int arg0 ) { if ( list . isEmpty ( ) ) { throw new EmptyStackException ( ) ; } return list . get ( list . size ( ) - arg0 - 1 ) ; </s>