Path: csiph.com!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: Knute Johnson <nospam@rabbitbrush.frazmtn.com>
Newsgroups: comp.lang.java.programmer
Subject: Re: What's the best way to make a cross string set?
Date: Thu, 27 Jul 2017 14:38:11 -0500
Organization: A noiseless patient Spider
Lines: 86
Message-ID: <oldf7j$t6b$1@dont-email.me>
References: <6f9ff338-1944-4b64-83b8-4a921ce57a89@googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
Injection-Date: Thu, 27 Jul 2017 19:34:12 -0000 (UTC)
Injection-Info: mx02.eternal-september.org; posting-host="03081296d9ee4ff254bcbb936f7fd006"; logging-data="29899"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/1yseR8EZDzQQ+tqEYJkRf"
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1
In-Reply-To: <6f9ff338-1944-4b64-83b8-4a921ce57a89@googlegroups.com>
Content-Language: en-US
Cancel-Lock: sha1:v+vPQkSBE0mBN4KkW5mULI9UXHA=
Xref: csiph.com comp.lang.java.programmer:37007

On 7/27/2017 14:12, Eric Douglas wrote:
> I have a variable number of lists of values, as in
> ArrayList list1 = new ArrayList()
> ArrayList list2 = new ArrayList()
> list2.add("a")
> list2.add("b")
> list2.add("c")
> list1.add(list2)
> ArrayList list3 = new ArrayList()
> list3.add("1")
> list3.add("2")
> list3.add("3")
> list1.add(list3)
> ArrayList list4 = new ArrayList()
> list4.add("fg")
> list4.add("hj")
> list4.add("kl")
> list1.add(list4)
> 
> Now I want to print only the complete set, as in
> a1fg
> b1fg
> c1fg
> a2fg
> b2fg
> c2fg
> a3fg
> b3fg
> c3fg
> a1hj
> b1hj
> ...
> 

import java.util.*;

public class test0 {
     public static void main(String... args) {
         List<String> list1 = Arrays.asList("a","b","c");
         List<String> list2 = Arrays.asList("1","2","3");
         List<String> list3 = Arrays.asList("fg","hj","kl");

         for (String str3 : list3) {
             for (String str2 : list2) {
                 for (String str1 : list1) {
                     System.out.println(str1.concat(str2.concat(str3)));
                 }
             }
         }
     }
}

C:\Users\Knute Johnson>java test0
a1fg
b1fg
c1fg
a2fg
b2fg
c2fg
a3fg
b3fg
c3fg
a1hj
b1hj
c1hj
a2hj
b2hj
c2hj
a3hj
b3hj
c3hj
a1kl
b1kl
c1kl
a2kl
b2kl
c2kl
a3kl
b3kl
c3kl



-- 

Knute Johnson