EJavaVersion (ph-commons 10.1.6 API)

java.lang.Object
- java.lang.Enum<EJavaVersion>
- - com.helger.commons.system.EJavaVersion

All Implemented Interfaces:

Serializable, Comparable<EJavaVersion>
```
public enum EJavaVersion
extends Enum<EJavaVersion>
```
Enumeration for representing the current Java JDK version.

Author:

Philip Helger

Enum Constant Summary

Enum Constants
Enum Constant and Description
`JDK_1_1`
`JDK_1_2`
`JDK_1_3`
`JDK_1_4`
`JDK_1_5`
`JDK_1_6`
`JDK_1_7`
`JDK_1_8`
`JDK_10`
`JDK_11`
`JDK_12`
`JDK_13`
`JDK_14`
`JDK_15`
`JDK_16`
`JDK_17`
`JDK_9`
`UNKNOWN`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static EJavaVersion`	`getCurrentVersion()`
`static EJavaVersion`	`getFromMajorAndMinor(int nMajor, int nMinor)` Get the matching Java version from a class version.
`static EJavaVersion`	`getFromVersionNumber(double dVersion)`
`boolean`	`isCurrentVersion()`
`protected boolean`	`isMatchingVersion(double dVersion)`
`boolean`	`isNewerOrEqualsThan(EJavaVersion eJavaVersion)` Check if this java version is newer or equals than the passed version
`boolean`	`isOlderOrEqualsThan(EJavaVersion eJavaVersion)` Check if this java version is older or equals than the passed version
`boolean`	`isSupportedVersion()`
`static EJavaVersion`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static EJavaVersion[]`	`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
  - UNKNOWN
```
public static final EJavaVersion UNKNOWN
```
  - JDK_1_1
```
public static final EJavaVersion JDK_1_1
```
  - JDK_1_2
```
public static final EJavaVersion JDK_1_2
```
  - JDK_1_3
```
public static final EJavaVersion JDK_1_3
```
  - JDK_1_4
```
public static final EJavaVersion JDK_1_4
```
  - JDK_1_5
```
public static final EJavaVersion JDK_1_5
```
  - JDK_1_6
```
public static final EJavaVersion JDK_1_6
```
  - JDK_1_7
```
public static final EJavaVersion JDK_1_7
```
  - JDK_1_8
```
public static final EJavaVersion JDK_1_8
```
  - JDK_9
```
public static final EJavaVersion JDK_9
```
  - JDK_10
```
public static final EJavaVersion JDK_10
```
  - JDK_11
```
public static final EJavaVersion JDK_11
```
  - JDK_12
```
public static final EJavaVersion JDK_12
```
  - JDK_13
```
public static final EJavaVersion JDK_13
```
  - JDK_14
```
public static final EJavaVersion JDK_14
```
  - JDK_15
```
public static final EJavaVersion JDK_15
```
  - JDK_16
```
public static final EJavaVersion JDK_16
```
  - JDK_17
```
public static final EJavaVersion JDK_17
```
- Method Detail
  - values
```
public static EJavaVersion[] 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 (EJavaVersion c : EJavaVersion.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static EJavaVersion 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
  - isMatchingVersion
```
protected boolean isMatchingVersion(double dVersion)
```
  - isCurrentVersion
```
public boolean isCurrentVersion()
```
    Returns:
    
    true if this is the current version, false otherwise
  - isSupportedVersion
```
public boolean isSupportedVersion()
```
    Returns:
    
    true if this Java version is supported by the current Java Version. It is expected that all versions are backward compatible.
  - isOlderOrEqualsThan
```
public boolean isOlderOrEqualsThan(@Nonnull
                                   EJavaVersion eJavaVersion)
```
    Check if this java version is older or equals than the passed version
    
    Parameters:
    
    eJavaVersion - the Java version to be checked. May not be null.
    
    Returns:
    
    true if this Java version is old or equal than the passed version.
  - isNewerOrEqualsThan
```
public boolean isNewerOrEqualsThan(@Nonnull
                                   EJavaVersion eJavaVersion)
```
    Check if this java version is newer or equals than the passed version
    
    Parameters:
    
    eJavaVersion - the Java version to be checked. May not be null.
    
    Returns:
    
    true if this Java version is newer or equal than the passed version.
  - getCurrentVersion
```
@Nonnull
public static EJavaVersion getCurrentVersion()
```
    Returns:
    
    The current Java version. If the Java version could not be determined, UNKNOWN is returned and never null.
  - getFromMajorAndMinor
```
@Nonnull
public static EJavaVersion getFromMajorAndMinor(int nMajor,
                                                          int nMinor)
```
    Get the matching Java version from a class version.
    
    Parameters:
    
    nMajor - Major version number
    
    nMinor - Minor version number
    
    Returns:
    
    UNKNOWN if the version could not be determined.
  - getFromVersionNumber
```
@Nonnull
public static EJavaVersion getFromVersionNumber(double dVersion)
```

Enum EJavaVersion

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

UNKNOWN

JDK_1_1

JDK_1_2

JDK_1_3

JDK_1_4

JDK_1_5

JDK_1_6

JDK_1_7

JDK_1_8

JDK_9

JDK_10

JDK_11

JDK_12

JDK_13

JDK_14

JDK_15

JDK_16

JDK_17

Method Detail

values

valueOf

isMatchingVersion

isCurrentVersion

isSupportedVersion

isOlderOrEqualsThan

isNewerOrEqualsThan

getCurrentVersion

getFromMajorAndMinor

getFromVersionNumber