The Unicode block for Javanese is U+A980–U+A9DF. There are 91 code points for Javanese script: 53 letters, 19 punctuation marks, 10 numbers, and 9 vowels:
Moore, Lisa (2009-05-20), "Consensus 119-C19", UTC #119 / L2 #216 Minutes, Approve the name changes in section A, B, and C of document L2/09-177... [U+A9C0]
McGowan, Rick (2016-11-07), "Incorrect Indic positional category for Javanese consonant sign cakra", Comments on Public Review Issues (July 27 - Nov 7, 2016)
Anderson, Deborah; et al. (2019-01-13), "16.a. Javanese Consonant sign Keret, 16.b. Javanese Vowel sign Tolong", Recommendations to UTC #158 January 2019 on Script Proposals