Inquire about uniform random-number generation

The textbook (microeconometrics using stata) said,

For reproducibility of results, however, it is best to actually set the initial seed by using

Code:

set seed

. Then if the program is rerun at a later time or by a different researcher, the same results will be obtained.

However,

Code:

set seed 10101
scalar u = runiform()
display u

My display value is different from the textbook's.