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From Holger Klawitter <lis...@klawitter.de>
Subject Re: OT Friday - Random sorting
Date Fri, 03 Jun 2005 08:06:00 GMT
Mark Benussi wrote:

> Hello.
> 
>  
> 
> I am trying to write a comparator that randomly sorts a collection.
> 
>  
> 
> I have something like this:
> 
>  
> 
> new Comparator() {
> 
>       
> 
>       /**
> 
>        * @see java.util.Comparator#compare(java.lang.Object,
> java.lang.Object)
> 
>        */
> 
>       public int compare(Object object1, Object object2) {
> 
>             
> 
>             long time = new Date().getTime();
> 
>  
> 
>             Random random1 = new Random(time);
> 
>             Integer x1 = new Integer(random1.nextInt());
> 
>             random1.setSeed(++time);
> 
>             Integer x2 = new Integer(random1.nextInt());
> 
>             
> 
>             return x1.compareTo(x2);
> 
>       }
> 
> }
> 
>  
> 
> But sadly to no avail.
> 
>  
> 
> Has anyone done this before or have any suggestions.

I'd just use java.util.Collections.shuffle().

-- 
With Kind Regards / Mit freundlichem Gruß
  Holger Klawitter (listen <at> klawitter <dot> de)


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