Path: csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!news.alt.net!news-in-01.newsfeed.easynews.com!easynews.com!easynews!news-out.news.tds.net!newsreading01.news.tds.net!53ab2750!not-for-mail From: "Gene Wirchenko" Subject: Re: multiple inheritance Message-ID: <501C1562.56012.calajapr@time.synchro.net> X-Comment-To: markspace Newsgroups: comp.lang.java.programmer In-Reply-To: <501C1561.56008.calajapr@time.synchro.net> References: <501C1561.56008.calajapr@time.synchro.net> X-FTN-AREA: COMP.LANG.JAVA.PROGRAMMER X-FTN-MSGID: 1:261/38 88b1654b X-FTN-REPLY: 1:261/38 6bec8758 Content-Type: text/plain; charset=IBM437 Content-Transfer-Encoding: 8bit X-Gateway: time.synchro.net [Synchronet 3.16a-Win32 NewsLink 1.98] Lines: 40 Date: Fri, 03 Aug 2012 18:54:12 GMT NNTP-Posting-Host: 69.21.70.65 X-Complaints-To: news@tds.net X-Trace: newsreading01.news.tds.net 1344020052 69.21.70.65 (Fri, 03 Aug 2012 13:54:12 CDT) NNTP-Posting-Date: Fri, 03 Aug 2012 13:54:12 CDT Organization: tds.net X-Received-Bytes: 2231 Xref: csiph.com comp.lang.java.programmer:17053 To: markspace From: "Gene Wirchenko" To: markspace From: Gene Wirchenko On Wed, 01 Aug 2012 20:07:58 -0700, markspace <-@.> wrote: >On 8/1/2012 7:28 PM, bob smith wrote: >> Why doesn't Java support multiple inheritance? >The diamond problem. I'm not really up on the details however. Such a lovely name. The link does go into enough detail to understand it. >I can tell you from hanging out on the lambda-dev list (Java 8 features) >that Brian Goetz has pushed back strongly on any sort of multiple >inheritance. Apparently the diamond problem is a real bear and >introduces real complexity into both the compiler and the user code that >can cause big problems in the long run. > >http://en.wikipedia.org/wiki/Diamond_problem It also has a number of different handlings in MI languages so there is not an obvious solution. Sincerely, Gene Wirchenko -+- BBBS/Li6 v4.10 Dada-1 + Origin: Prism bbs (1:261/38) -+- Synchronet 3.16a-Win32 NewsLink 1.98 Time Warp of the Future BBS - telnet://time.synchro.net:24 --- BBBS/Li6 v4.10 Dada-1 * Origin: Prism bbs (1:261/38) --- Synchronet 3.16a-Win32 NewsLink 1.98 Time Warp of the Future BBS - telnet://time.synchro.net:24