Classification of Primitive Types

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2.10 Classification of Primitive Types

---char
--short
|
---int
---long -- char
--Integer types--| --short
| |unsigned-|
| | |--int
| | -- long
Predefined types-| |
| --signed---- char
| ---
| | float
-Floating types -|-double
|
---long---- double

Suffixes on Constants

‘L’ or ‘l’ — Long constant, e.g., 187L
‘F’ or ‘f’ — Float, e.g., 2.3F
‘U’ or ‘u’ — Unsigned, e.g., 99U

Prefixes on Constants

‘0’ (zero) — Octal base, e.g., 070
‘0X’ or ‘0x’ — Hexadecimal base, e. g., 0x7A