LEXICAL STRUCTURE

Integer Literals

3.10.1

The keywords

const

 and

goto

 are reserved by Java, even though they are not

currently used in Java. This may allow a Java compiler to produce better error

messages if these C++ keywords incorrectly appear in Java programs.

While

true

 and

false

 might appear to be keywords, they are technically

Boolean literals ( 3.10.3). Similarly, while

null

 might appear to be a keyword, it

is technically the null literal ( 3.10.7).

3.10   Literals

A

literal

 is the source code representation of a value of a primitive type ( 4.2), the

String

 type ( 4.3.3,  20.12), or the null type ( 4.1):

Literal:

IntegerLiteral

FloatingPointLiteral

BooleanLiteral

CharacterLiteral

StringLiteral

NullLiteral

3.10.1   Integer Literals

See  4.2.1 for a general discussion of the integer types and values.

An

integer literal

 may be expressed in decimal (base 10), hexadecimal

(base 16), or octal (base 8):

IntegerLiteral:

DecimalIntegerLiteral

HexIntegerLiteral

OctalIntegerLiteral

DecimalIntegerLiteral:

DecimalNumeral IntegerTypeSuffix

opt

HexIntegerLiteral:

HexNumeral IntegerTypeSuffix

opt

OctalIntegerLiteral:

OctalNumeral IntegerTypeSuffix

opt

IntegerTypeSuffix: one of

l L

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