Path: csiph.com!optima2.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!1.eu.feeder.erje.net!news.swapon.de!eternal-september.org!feeder.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail From: Martin Gregorie Newsgroups: comp.lang.java.programmer Subject: Re: [JLS] new long[0][ -1 ] Date: Fri, 10 Jul 2015 22:29:17 +0000 (UTC) Organization: A noiseless patient Spider Lines: 23 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Injection-Date: Fri, 10 Jul 2015 22:29:17 +0000 (UTC) Injection-Info: mx02.eternal-september.org; posting-host="e5160e2be48f1ea550cf61512446f525"; logging-data="17438"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18NWbbNvSlVDITbb9KQ/94wiXXTp7Wb7MM=" User-Agent: Pan/0.139 (Sexual Chocolate; GIT bf56508 git://git.gnome.org/pan2) Cancel-Lock: sha1:4Xp1EKfxv4pXoArhD9Vf5A/fAt8= Xref: csiph.com comp.lang.java.programmer:31989 On Fri, 10 Jul 2015 21:17:33 +0000, Andreas Leitgeb wrote: > Martin Gregorie wrote: >> Two features I'd have liked to see in Java are non-zero based arrays, >> e.g. >> int temperatureOcurrences[-40:55] and flexible array bounds, e.g int >> samples[0:flex] > Given that arrays are meant as internal building blocks for higher level > structures, then the answer would be a custom class that would wrap an > array and present an interface with custom index ranges. > Fair point: I started to realise this as I wrote the previous post. Just as an ArrayList does much of what am A68 flexible array does, you could subclass an ArrayList with a constructor argument that effectively sets the lower bound by being subtracted from, e.g. the get() index to make it zero-based. -- martin@ | Martin Gregorie gregorie. | Essex, UK org |