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Re: What is this? (Java syntax)

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  Re: What is this? (Java syntax) Jeff Higgins <jeff@invalid.invalid> - 2015-04-14 13:09 -0400
    Re: What is this? (Java syntax) Jeff Higgins <jeff@invalid.invalid> - 2015-04-14 13:24 -0400

#31568 — Re: What is this? (Java syntax)

On 04/14/2015 12:43 PM, Stefan Ram wrote:
>    I found this on a web page:
>
> private enum WinRegistryMethod {
>      OpenKey("WindowsRegOpenKey", int.class, byte[].class, int.class) {
>          @Override
>          protected void verifyReturnValue(Object retValue)
>          ...
>
>    What is the part beginning at »OpenKey«?

A constructor for the enum constant OpenKey of enum type WinRegistryMethod.

>
>    I would understand this if there was a »new« in front of
>    »OpenKey«. In this case, it would be an instance creation
>    expression (anonymous inner class). But there is no »new«.
>
>    According to the web page, the above code is Java code and it
>    seems to have been used successfully. Do I miss some part of
>    the Java syntax?
>
>    Or maybe, the »new« was in the source code of the poster and
>    got lost for some technical reason?
>

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#31570

On 04/14/2015 01:09 PM, Jeff Higgins wrote:
> On 04/14/2015 12:43 PM, Stefan Ram wrote:
>>    I found this on a web page:
>>
>> private enum WinRegistryMethod {
>>      OpenKey("WindowsRegOpenKey", int.class, byte[].class, int.class) {
>>          @Override
>>          protected void verifyReturnValue(Object retValue)
>>          ...
>>
>>    What is the part beginning at »OpenKey«?
>
> A constructor for the enum constant OpenKey of enum type WinRegistryMethod.

An example:
<http://www.basilv.com/psd/blog/2006/advanced-uses-of-java-5-enums>

>
>>
>>    I would understand this if there was a »new« in front of
>>    »OpenKey«. In this case, it would be an instance creation
>>    expression (anonymous inner class). But there is no »new«.
>>
>>    According to the web page, the above code is Java code and it
>>    seems to have been used successfully. Do I miss some part of
>>    the Java syntax?
>>
>>    Or maybe, the »new« was in the source code of the poster and
>>    got lost for some technical reason?
>>
>

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