topic Re: class declaration in Application Development and Automation Discussions

class declaration

Former Member — Fri, 11 Jul 2008 12:34:04 GMT

hi all

can classes be both final and abstract?

Re: class declaration

Former Member — Fri, 11 Jul 2008 12:39:39 GMT

Hi,

In SAP Final Class Means that class can not be inherited by any Child Class.

There is no such Abstract class in Sap

Regards,

Sujit

Re: class declaration

Former Member — Fri, 11 Jul 2008 12:41:18 GMT

thnanx for ur reply sujit..

is it means we can not declare a class both final and abstract..

Re: class declaration

Former Member — Fri, 11 Jul 2008 12:43:14 GMT

hi,

What sujit mentioned is true about Final Class but for Abstract plz refer t othe Link.

http://www.sap-img.com/java/when-we-go-for-abstract-and-interface.htm

hope this will help.

Sumit Agarwal

Re: class declaration

Former Member — Fri, 11 Jul 2008 12:47:07 GMT

Hey!

Check out this sample code

http://www.sap-press.de/katalog/buecher/htmlleseproben/gp/htmlprobID-28?GalileoSession=22448306A3l7UG82GU8#level3~3

Regards

Abhijeet

Re: class declaration

Former Member — Fri, 11 Jul 2008 12:47:33 GMT

Hi,

Check yhis link there are dEtaild description about your Doubt-

http://www.sap-press.de/katalog/buecher/htmlleseproben/gp/htmlprobID-28?GalileoSession=22448306A3l7UG82GU8#level3~3

Regards,

Sujit

Re: class declaration

Former Member — Fri, 11 Jul 2008 13:07:35 GMT

Hi,

you can define a class as abstract AND final in ABAP OO, but it makes no sense I think.

To do this means at least that you could only use as 'static' defined class components.

You can't set an instance method static and final at the same time !

Regards

Olaf

Re: class declaration

former_member509072 — Fri, 01 Aug 2008 14:25:10 GMT

Hi Olaf,

that was an intersting thing you pointed out.

But I still fail to justify allowing a class that is both abstract and final.

The usage that you mentioned should be actually served by an interface.

I also noted that the syntax check allows a class to be both final and abstract although an abstract method may be defined in it. This is again meaningless.

Zakir