Table 5.1 - Some basic types
Basic type Range
Byte 8-bit signed two's complement integer (-27 to 27 - 1, inclusive)
Short 16-bit signed two's complement integer (-215 to 215 - 1, inclusive)
Int 32-bit signed two's complement integer (-231 to 231 - 1, inclusive)
Long 64-bit signed two's complement integer (-263 to 263 - 1, inclusive)
Char 16-bit unsigned Unicode character (0 to 216 - 1, inclusive)

-27 to 27 - 1 should be -2^7 to 2^7 -1, the other errors are the same.

NOTE: This is fine in the PDF, so perhaps this is a problem in the MOBI
or EPUB versions.

Table 5.3 Operator precedence
The order of "= !" and "< >" should be inverted with respect to the
language specification (cf.
https://www.scala-lang.org/files/archive/spec/2.12/06-expressions.html#inf
ix-operations).
Testing seems to confirm the language specification is correct.
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Wow that's a good one. Fixed in 5ed. Tnx.