Re: [Swarm-Support] Swarm questions

[Li An]

Hi

Say, the list contains a number of bugs (agents) and the Bug class has an 
attribute called bugColor and getBugColor and setBugColor methods. For some 
reason, I want to turn the color of each bug in the list to blue--in this 
case, I can use a for loop (Java Swarm) as below:

for (int i=0;i<bugList.size();i++){
        aBug=(Bug)bugList.get(i);  //aBug should be an object of class Bug 
declared earlier
        aBug.setBugColor(blue);
}

This is relatively inefficient in some cases. My question was to set the 
color to blue to all the bugs in bugList without using the above loop. Does 
forEach work here?

At 11:50 AM 4/2/2003 -0800, you wrote:
> Li An writes:
>  > (1) I remember when I read the Swarm tutorial, there is a quick way to 
> turn
>  > on or off the flag of all the elements in a list without traversing the
>  > list. Is this true? If so, how to do it?
>
> What do you mean by "the flag"?  There are "forEach", "dropAll", and
> "deleteAll" methods for lists?  So, if by "flag" you mean call some
> method that manipulates a variable, then forEach is what you want,
> as long as the elements of the list all accept that method.  If you're
> looking to remove items from a list without dropping them, then
> dropAll is what you want.  If you want to remove and drop all elements
> from a list, then deleteAll is what you want.
>
> --
> glen e. p. ropella              =><=                           Hail Eris!
> H: 503.630.4505                              http://www.ropella.net/~gepr
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Li An
Laboratory of Systems Integration and Modeling
13 Natural Resources Building
Department of Fisheries and Wildlife
Michigan State University
East Lansing, MI 48824

Phone (Work): 517-353-7981
Fax: 517-432-1699
http://www.msu.edu/~anli