Package org.apache.commons.lang3

Enum JavaVersion

java.lang.Object

java.lang.Enum<JavaVersion>

org.apache.commons.lang3.JavaVersion

All Implemented Interfaces:

Serializable, Comparable<JavaVersion>

public enum JavaVersion
extends Enum<JavaVersion>

An enum representing all the versions of the Java specification. This is intended to mirror available values from the java.specification.version System property.

Since:

3.0

Enum Constant Summary

Enum Constants

Enum Constant	Description
JAVA_0_9	The Java version reported by Android.
JAVA_1_1	Java 1.1.
JAVA_1_2	Java 1.2.
JAVA_1_3	Java 1.3.
JAVA_1_4	Java 1.4.
JAVA_1_5	Java 1.5.
JAVA_1_6	Java 1.6.
JAVA_1_7	Java 1.7.
JAVA_1_8	Java 1.8.
JAVA_1_9	Deprecated. As of release 3.5, replaced by JAVA_9
JAVA_10	Java 10
JAVA_11	Java 11
JAVA_9	Java 9
JAVA_RECENT	The most recent java version.

Method Summary

Modifier and Type	Method	Description
boolean	atLeast(JavaVersion requiredVersion)	Whether this version of Java is at least the version of Java passed in.
String	toString()	The string value is overridden to return the standard name.
static JavaVersion	valueOf(String name)	Returns the enum constant of this type with the specified name.
static JavaVersion[]	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, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

JAVA_0_9

public static final JavaVersion JAVA_0_9

The Java version reported by Android. This is not an official Java version number.

JAVA_1_1

public static final JavaVersion JAVA_1_1

Java 1.1.

JAVA_1_2

public static final JavaVersion JAVA_1_2

Java 1.2.

JAVA_1_3

public static final JavaVersion JAVA_1_3

Java 1.3.

JAVA_1_4

public static final JavaVersion JAVA_1_4

Java 1.4.

JAVA_1_5

public static final JavaVersion JAVA_1_5

Java 1.5.

JAVA_1_6

public static final JavaVersion JAVA_1_6

Java 1.6.

JAVA_1_7

public static final JavaVersion JAVA_1_7

Java 1.7.

JAVA_1_8

public static final JavaVersion JAVA_1_8

Java 1.8.

JAVA_1_9

@Deprecated
public static final JavaVersion JAVA_1_9

Deprecated.

As of release 3.5, replaced by JAVA_9

Java 1.9.

JAVA_9

public static final JavaVersion JAVA_9

Java 9

Since:

3.5

JAVA_10

public static final JavaVersion JAVA_10

Java 10

Since:

3.7

JAVA_11

public static final JavaVersion JAVA_11

Java 11

Since:

3.8

JAVA_RECENT

public static final JavaVersion JAVA_RECENT

The most recent java version. Mainly introduced to avoid to break when a new version of Java is used.

Method Detail

values

public static JavaVersion[] 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 (JavaVersion c : JavaVersion.values())
    System.out.println(c);

Returns:

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

valueOf

public static JavaVersion 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

atLeast

public boolean atLeast(JavaVersion requiredVersion)

Whether this version of Java is at least the version of Java passed in.

For example:
myVersion.atLeast(JavaVersion.JAVA_1_4)

Parameters:

requiredVersion - the version to check against, not null

Returns:

true if this version is equal to or greater than the specified version

toString

public String toString()

The string value is overridden to return the standard name.

For example, "1.5".

Overrides:

toString in class Enum<JavaVersion>

Returns:

the name, not null