javax.lang.model

## Enum SourceVersion

- java.lang.Object
- - java.lang.Enum<SourceVersion>
  - - javax.lang.model.SourceVersion

- All Implemented Interfaces:
    Serializable, Comparable<SourceVersion>

      public enum SourceVersion
      extends Enum<SourceVersion>

  Source versions of the Java™ programming language. See the appropriate edition of The Java™ Language Specification for information about a particular source version.

  Note that additional source version constants will be added to model future releases of the language.

  Since:
    1.6

- - ### Enum Constant Summary

    Enum Constants
    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.

  - ### Method Summary

    Methods
    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.

    - ### Methods inherited from class java.lang.Enum

      `clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf`

    - ### Methods inherited from class java.lang.Object

      `getClass, notify, notifyAll, wait, wait, wait`

- - ### Enum Constant Detail

    - #### RELEASE_0

          public static final SourceVersion RELEASE_0

      The original version. The language described in The Java™ Language Specification, First Edition.

    - #### RELEASE_1

          public static final SourceVersion RELEASE_1

      The version recognized by the Java Platform 1.1. The language is `RELEASE_0` augmented with nested classes as described in the 1.1 update to The Java™ Language Specification, First Edition.

    - #### RELEASE_2

          public static final SourceVersion RELEASE_2

      The version recognized by the Java 2 Platform, Standard Edition, v 1.2. The language described in The Java™ Language Specification, Second Edition, which includes the `strictfp` modifier.

    - #### RELEASE_3

          public static final SourceVersion RELEASE_3

      The version recognized by the Java 2 Platform, Standard Edition, v 1.3. No major changes from `RELEASE_2`.

    - #### RELEASE_4

          public static final SourceVersion RELEASE_4

      The version recognized by the Java 2 Platform, Standard Edition, v 1.4. Added a simple assertion facility.

    - #### RELEASE_5

          public static final SourceVersion RELEASE_5

      The version recognized by the Java 2 Platform, Standard Edition 5.0. The language described in The Java™ Language Specification, Third Edition. First release to support generics, annotations, autoboxing, var-args, enhanced `for` loop, and hexadecimal floating-point literals.

    - #### RELEASE_6

          public static final SourceVersion RELEASE_6

      The version recognized by the Java Platform, Standard Edition 6. No major changes from `RELEASE_5`.

    - #### RELEASE_7

          public static final SourceVersion RELEASE_7

      The version recognized by the Java Platform, Standard Edition 7.
      Since:
        1.7

  - ### Method Detail

    - #### values

          public static SourceVersion[] values()

      Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

          for (SourceVersion c : SourceVersion.values())
              System.out.println(c);

      Returns:
        an array containing the constants of this enum type, in the order they are declared

    - #### valueOf

          public static SourceVersion valueOf(String name)

      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
        `name` - the name of the enum constant to be returned.
      Returns:
        the enum constant with the specified name
      Throws:
        `IllegalArgumentException` - if this enum type has no constant with the specified name
        `NullPointerException` - if the argument is null

    - #### latest

          public static SourceVersion latest()

      Returns the latest source version that can be modeled.
      Returns:
        the latest source version that can be modeled

    - #### latestSupported

          public static SourceVersion latestSupported()

      Returns the latest source version fully supported by the current execution environment. `RELEASE_5` or later must be returned.
      Returns:
        the latest source version that is fully supported

    - #### isIdentifier

          public static boolean isIdentifier(CharSequence name)

      Returns whether or not `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.
      Parameters:
        `name` - the string to check
      Returns:
        `true` if this string is a syntactically valid identifier or keyword, `false` otherwise.

    - #### isName

          public static boolean isName(CharSequence name)

      Returns whether or not `name` is a syntactically valid qualified name in the latest source version. Unlike `isIdentifier`, this method returns `false` for keywords and literals.
      Parameters:
        `name` - the string to check
      Returns:
        `true` if this string is a syntactically valid name, `false` otherwise.
      See The Java™ Language Specification:
        6.2 Names and Identifiers

    - #### isKeyword

          public static boolean isKeyword(CharSequence s)

      Returns whether or not `s` is a keyword or literal in the latest source version.
      Parameters:
        `s` - the string to check
      Returns:
        `true` if `s` is a keyword or literal, `false` otherwise.

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