public enum SourceVersion extends Enum<SourceVersion>
Note that additional source version constants will be added to model future releases of the language.
Enum Constant and Description |
---|
RELEASE_0
The original version.
|
RELEASE_1
The version recognized by the Java Platform 1.1.
|
RELEASE_2
The version recognized by the Java 2 Platform, Standard Edition,
v 1.2.
|
RELEASE_3
The version recognized by the Java 2 Platform, Standard Edition,
v 1.3.
|
RELEASE_4
The version recognized by the Java 2 Platform, Standard Edition,
v 1.4.
|
RELEASE_5
The version recognized by the Java 2 Platform, Standard
Edition 5.0.
|
RELEASE_6
The version recognized by the Java Platform, Standard Edition
6.
|
RELEASE_7
The version recognized by the Java Platform, Standard Edition
7.
|
RELEASE_8
The version recognized by the Java Platform, Standard Edition
8.
|
Modifier and Type | Method and Description |
---|---|
static boolean |
isIdentifier(CharSequence name)
Returns whether or not
name is a syntactically valid
identifier (simple name) or keyword in the latest source
version. |
static boolean |
isKeyword(CharSequence s)
Returns whether or not
s is a keyword or literal in the
latest source version. |
static boolean |
isName(CharSequence name)
Returns whether or not
name is a syntactically valid
qualified name in the latest source version. |
static SourceVersion |
latest()
Returns the latest source version that can be modeled.
|
static SourceVersion |
latestSupported()
Returns the latest source version fully supported by the
current execution environment.
|
static SourceVersion |
valueOf(String name)
Returns the enum constant of this type with the specified name.
|
static SourceVersion[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared.
|
public static final SourceVersion RELEASE_0
public static final SourceVersion RELEASE_1
RELEASE_0
augmented with nested classes as described in the 1.1 update to
The Java™ Language Specification, First Edition.public static final SourceVersion RELEASE_2
strictfp
modifier.public static final SourceVersion RELEASE_3
RELEASE_2
.public static final SourceVersion RELEASE_4
public static final SourceVersion RELEASE_5
for
loop, and hexadecimal floating-point literals.public static final SourceVersion RELEASE_6
RELEASE_5
.public static final SourceVersion RELEASE_7
try
-with-resources, strings in switch,
binary literals, and multi-catch.public static final SourceVersion RELEASE_8
public static SourceVersion[] values()
for (SourceVersion c : SourceVersion.values()) System.out.println(c);
public static SourceVersion valueOf(String name)
name
- the name of the enum constant to be returned.IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is nullpublic static SourceVersion latest()
public static SourceVersion latestSupported()
RELEASE_5
or later must
be returned.public static boolean isIdentifier(CharSequence name)
name
is a syntactically valid
identifier (simple name) or keyword in the latest source
version. The method returns true
if the name consists
of an initial character for which Character.isJavaIdentifierStart(int)
returns true
,
followed only by characters for which Character.isJavaIdentifierPart(int)
returns true
.
This pattern matches regular identifiers, keywords, and the
literals "true"
, "false"
, and "null"
.
The method returns false
for all other strings.name
- the string to checktrue
if this string is a
syntactically valid identifier or keyword, false
otherwise.public static boolean isName(CharSequence name)
name
is a syntactically valid
qualified name in the latest source version. Unlike isIdentifier
, this method returns false
for keywords and literals.name
- the string to checktrue
if this string is a
syntactically valid name, false
otherwise.public static boolean isKeyword(CharSequence s)
s
is a keyword or literal in the
latest source version.s
- the string to checktrue
if s
is a keyword or literal, false
otherwise. Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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