Editing Java syntax (section)

===Literals===

{| class="wikitable"
|-
!colspan="2"|Integers
|-
![[Binary numeral system|binary]] (introduced in Java SE 7)
|{{mono|0b11110101}} ({{mono|0b}} followed by a binary number)
|-
![[octal]]
|{{mono|0365}} ({{mono|0}} followed by an octal number)
|-
![[hexadecimal]]
|{{mono|0xF5}} ({{mono|0x}} followed by a hexadecimal number)
|-
![[decimal]]
|{{mono|245}} (decimal number)
|-
!colspan="2"|[[Floating-point]] values
|-
!rowspan="2" | float
|{{mono|23.5F}}, {{mono|.5f}}, {{mono|1.72E3F}} (decimal fraction with an optional exponent indicator, followed by {{mono|F}})
|-
|{{mono|0x.5FP0F}}, {{mono|0x.5P-6f}} ({{mono|0x}} followed by a hexadecimal fraction with a mandatory exponent indicator and a suffix {{mono|F}})
|-
!rowspan="2" | double
|{{mono|23.5D}}, {{mono|.5}}, {{mono|5.}}, {{mono|1.72E3D}} (decimal fraction with an optional exponent indicator, followed by optional {{mono|D}})
|-
|{{mono|0x.5FP0}}, {{mono|0x.5P-6D}} ({{mono|0x}} followed by a hexadecimal fraction with a mandatory exponent indicator and an optional suffix {{mono|D}})
|-
!colspan="2"|Character literals
|-
!char
|{{mono|'a'}}, {{mono|'Z'}}, {{mono|'\u0231'}} (character or a character escape, enclosed in single quotes)
|-
!colspan="2"|Boolean literals
|-
!boolean
|{{mono|true}}, {{mono|false}}
|-
!colspan="2"|null literal
|-
!null reference
|{{mono|null}}
|-
!colspan="2"|String literals
|-
!String
|{{mono|"Hello, World"}} (sequence of characters and character escapes enclosed in double quotes)
|-
!colspan="2"|Characters escapes in strings
|-
![[Unicode]] character
|{{mono|\u3876}} ({{mono|\u}} followed by the hexadecimal unicode code point up to U+FFFF)
|-
![[Octal]] escape
|{{mono|\352}} (octal number not exceeding 377, preceded by backslash)
|-
![[Line feed]]
|{{mono|\n}}
|-
![[Carriage return]]
|{{mono|\r}}
|-
![[Form feed]]
|{{mono|\f}}
|-
![[Backslash]]
|{{mono|\\}}
|-
![[Single quote]]
|{{mono|\'}}
|-
![[Double quote]]
|{{mono|\"}}
|-
![[Tab character|Tab]]
|{{mono|\t}}
|-
![[Backspace]]
|{{mono|\b}}
|}

Integer literals are of <code>int</code> type by default unless <code>long</code> type is specified by appending <code>L</code> or <code>l</code> suffix to the literal, e.g. <code>367L</code>. Since Java SE 7, it is possible to include underscores between the digits of a number to increase readability; for example, a number {{mono|145608987}} can be written as {{mono|145_608_987}}.