Article View: pl.comp.lang.java
Article #150529Re: Sortowanie arraylist arraylisty
From: Brzezi
Date: Thu, 01 Jul 2010 15:28
Date: Thu, 01 Jul 2010 15:28
34 lines
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1909 bytes
czw, 01 lip 2010 o 17:17 GMT, Buffalo napisał(a):
> Próbowałem napisać coś takiego:
> final Collator col = Collator.getInstance();
A do czego Ci tutaj collator?
> Collections.sort(listaMain, new Comparator<ArrayList<String>>() {
>
> @Override
> public int compare(ArrayList<String> o1, ArrayList<String> o2) {
> col.compare(o1.get(1), o2.get(1));
> }
> });
>
> ...ale to się nie kompiluje :( Rozumiem, że to dlatego, ponieważ
> ArrayList nie ma metody compare ...?
i dziwisz sie jak implementujesz metode ktora powinna zwraca int, a u
Ciebie brakuje returna?
Collections.sort(listaMain, comparator);
comparator ma zaimplementowana metode tak:
public int compare(ArrayList<String> o1, ArrayList<String> o2) {
return o1.get(1).compareTo(o2.get(1));
}
Pozdrawiam
Brzezi
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Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.gazeta.pl!newsfeed.pionier.net.pl!feeder.erje.net!news2.arglkargh.de!newsfeed.straub-nv.de!open-news-network.org!newsfeed01.sul.t-online.de!newsfeed00.sul.t-online.de!t-online.de!plix.pl!newsfeed1.plix.pl!wsisiz.edu.pl!newsfeed.atman.pl!not-for-mail From: Brzezi <brzezi@gmail.com> Newsgroups: pl.comp.lang.java Subject: Re: Sortowanie arraylist arraylisty Date: Thu, 1 Jul 2010 17:28:31 +0200 Organization: Hard Core Slrn-pl User Lines: 34 Message-ID: <slrn.pl.i2pd0v.d38.brzezi@brzezi.chello.pl> References: <9795fe35-71e8-406c-9898-57b1fdb0a0e1@z8g2000yqz.googlegroups.com> NNTP-Posting-Host: 82-210-139-160.home.aster.pl Mime-Version: 1.0 X-Trace: node1.news.atman.pl 1277998106 17086 82.210.139.160 (1 Jul 2010 15:28:26 GMT) X-Complaints-To: usenet@atman.pl NNTP-Posting-Date: Thu, 1 Jul 2010 15:28:26 +0000 (UTC) X-Licznik: 10947 User-Agent: slrn/0.9.7.4 (pl-1.4.3) (Linux/2.6.32-22-generic (i686)) X-NNTP-Posting-Host: localhost Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit