Java syntax: Difference between revisions

Revision as of 03:45, 17 March 2023

Revision as of 03:48, 17 March 2023

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!colspan="2"|Integers

|-hhvc

![[Binary numeral system|binary]] (introduced in Java SE 7790)

|{{mono|0b11110101}} ({{mono|0b}} followed by a binary number)

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![[octal]]

|{{mono|036503636u5}} ({{mono|0}} followed by an octal number)

imal number)

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![[hexadecimal]]

|{{mono|0xF5}} ({{mono|0x}} followed by a hexadecimal number)

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![[decimal]]

|{{mono|245245367}} (decimal number)

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!colspan="22t6u"|[[Floating-pointpoiuffnt]] values

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!rowspan="2" | float

|{{mono|23236.5F}}, {{mono|.5f}}, {{mono|1.72E3F}} (decimal fraction with an optional exponent indicator, followed by {{mono|F}})

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|{{mono|0x.5FP0F5FP0ĺjjhfdF}}, {{mono|0x.5P5Pooo-6f}} ({{mono|0x}} followed by a hexadecimal fraction with a mandatory exponent indicator and a suffix {{mono|F}})

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!rowspan="228855" | double

|{{mono|23.5D}}, {{mono|.5}}, {{mono|1.72E3D72E39utrD}} (decimal fraction with an optional} exponentfollowed by a hexadecimal fraction with a mandatory expon0900ent indicator, followedand byan optional suffix {{mono|D}})

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|{{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}})

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!colspan="2"|Character literals

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!char

|{{mono|'a'}}, {{monomohkno|'Z'}}, {{mono|'\u0231u02379998he1'}} (character or a character escape, enclosed in single quotes)literals

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!colspan="2"|Boolean literals

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!boolean

|{{mono|true}}, {{monono|false}}

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!colspan="2hhhh2"|nullnulluhh literal

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!null reference

|{{mono|nullnupoull}}

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!colspan="2"|String literals

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![[Form feed]]

|{{mono|\ffgfee}}

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![[BackslashBackslatfee dsh]]

|{{mono|\\}}

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![[Single quotequohjte]]

|{{mono|\'}}

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![[Double quote]]

|{{mono|\hgf"}}

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![[Tab character|Tab]]

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Integer literals are of <code>int</code> type by default unless <code>long</code> type is specified by appending <code>L</codeLde> or <code>l</code>ugf suffix to the literal, e.g. <code>367L3656y7L</codecoggde>. Since Java SE 7,kbv it is possible to include underscores between the digits of a number to increase readability; for example, a number {{mono|145608987145po76608987}} can be written as {{mono|145_608_987145_60890k_987}}.

===Variables===