Groups > comp.lang.java.programmer > #10657

Comparator?

From	Knute Johnson <nospam@knutejohnson.com>
Newsgroups	comp.lang.java.programmer
Subject	Comparator?
Date	2011-12-11 17:26 -0800
Organization	A noiseless patient Spider
Message-ID	<jc3l8r$rj6$1@dont-email.me> (permalink)

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I've got a question about how to create a Comparator that I can use to 
keep a sorted list of objects.  The sort fields would be a code that is 
not something to be sorted directly and a String that I would want 
alphabetical.  I would have a list of the codes and that list would be 
in the sorted order.  What I want to do is put the data in order 
according to the list of codes and the other String.

The codes are actually going to be a 3 letter String.  For example the 
codes could be;

XAB
AJC
BQP
RST

and the data would be a code String and another String to sort 
alphabetically.

XAB San Francisco
BQP Alabama
XAB Houston
AJC Montreal

I want the data sorted in this order:

XAB Houston
XAB San Francisco
AJC Montreal
BQP Alabama

Any simple ideas on how to design the Comparator?

Thanks,

-- 

Knute Johnson

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Thread

Comparator? Knute Johnson <nospam@knutejohnson.com> - 2011-12-11 17:26 -0800
  Re: Comparator? Patricia Shanahan <pats@acm.org> - 2011-12-11 18:16 -0800
    Re: Comparator? Knute Johnson <nospam@knutejohnson.com> - 2011-12-12 07:27 -0800
  Re: Comparator? Roedy Green <see_website@mindprod.com.invalid> - 2011-12-12 01:05 -0800
    Re: Comparator? Knute Johnson <nospam@knutejohnson.com> - 2011-12-12 07:28 -0800

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