Enum 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.
      RELEASE_8
      The version recognized by the Java Platform, Standard Edition 8.
    • 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. Additions in this release include, diamond syntax for constructors, try-with-resources, strings in switch, binary literals, and multi-catch.
        Since:
        1.7
      • RELEASE_8

        public static final SourceVersion RELEASE_8
        The version recognized by the Java Platform, Standard Edition 8. Additions in this release include lambda expressions and default methods.
        Since:
        1.8
    • 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.
      • 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.