Java: Primitive Types

`byte`
Description	8-bit signed integer
Range	−128 … 127 −2⁷ … 2⁷−1 `Byte.MIN_VALUE` … `Byte.MAX_VALUE`
Format	Two’s complement
Default Value	0
Boxed Type	`java.lang.Byte`
Example Literals	None
`short`
Description	16-bit signed integer
Range	−32,768 … 32,767 −2¹⁵ … 2¹⁵−1 `Short.MIN_VALUE` … `Short.MAX_VALUE`
Format	Two’s complement
Default Value	0
Boxed Type	`java.lang.Short`
Example Literals	None
`int`
Description	32-bit signed integer
Range	−2,147,483,648 … 2,147,483,647 −2³¹ … 2³¹−1 `Integer.MIN_VALUE` … `Integer.MAX_VALUE`
Format	Two’s complement
Default Value	0
Boxed Type	`java.lang.Integer`
Example Literals	`0` `1` `2147483648` Binary: `0b1001` `0b1111` Octal: `010` `0777` `0111` Hex: `0x1E3C` `0xFFFFFF` `0xCAFEBABE` With underscores: `1_000_000` `0xFFFF_FFFF`
`long`
Description	64-bit signed integer
Range	−9,223,372,036,854,775,808 … 9,223,372,036,854,775,807 −2⁶³ … 2⁶³−1 `Long.MIN_VALUE` … `Long.MAX_VALUE`
Format	Two’s complement
Default Value	0
Boxed Type	`java.lang.Long`
Example Literals	`0L` `123456L` Binary: `0b10101010L` Octal: `010L` `0777L` Hex: `0x1E3CL` `0xFFFFFFL` `0xCAFEBABEL` With underscores: `1_000_000L` `0xFFFF_FFFFL`
`float`
Description	32-bit real
Range	± 3.40282347×10³⁸ ± 1.11111111111111111111111×2¹²⁷ ± `Float.MAX_VALUE`
Precision	~6 digits
Format	IEEE 754
Default Value	0
Boxed Type	`java.lang.Float`
Special Values	`Float.MIN_VALUE` The smallest value greater than zero `Float.NaN` \
Example Literals	`1.0f` `3.1415f` `.5f` `1e5f` `1.1e-20f` `1.1e+003f` Hex: `0x1.8p2f` `0x1.FFFFFEp+127f`
`double`
Description	64-bit real
Range	± 1.7976931348623157×10³⁰⁸ ± 1.11111111111111111…111×2¹⁰²³ ± `Double.MAX_VALUE`
Precision	~15 digits
Format	IEEE 754
Default Value	0
Boxed Type	`java.lang.Double`
Special Values	`Double.MIN_VALUE` The smallest value greater than zero `Double.NaN` \
Example Literals	`1.0` `3.1415` `.5` `1e5` `1.1e-20` `1.1e+003` Hex: `0x1.8p2` `0x1.FFFFFFFFFFFFFp+1023` With suffix: `1.0d` `1.1e-20d`
`char`
Description	Unicode character (or 16-bit unsigned integer)
Range	`\u0000` … `\uFFFF` 0 … 65,535 0 … 2¹⁶−1 `Character.MIN_VALUE` … `Character.MAX_VALUE`
Format	UTF-16
Default Value	`\u0000` (0)
Boxed Type	`java.lang.Character`
Example Literals	`'a'` `'\n'` `'"'` `'\\'` `'\''` `'π'` `'д'`
`boolean`
Description	True or false
Format	undefined
Default Value	false
Boxed Type	`java.lang.Boolean`
Special Values	`Boolean.TRUE` Boxed true `Boolean.FALSE` Boxed false
Example Literals	`true` `false`

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