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Sorting vectors

John Brookes
Greenhorn

Joined: Feb 26, 2004
Posts: 29
I have a vector (LimitSet) of "Limit" objects, a limit consisting of an integer (pos) and a double (speed). How would I (if I even can) use Collections.sort to order the contents of the LimitSet by "pos"?
Ernest Friedman-Hill
author and iconoclast
Marshal

Joined: Jul 08, 2003
Posts: 24187
    
  34

Use the version of sort() that takes a java.util.Comparator as an argument. Provide a Comparator implementation which compares two Limit objects by subtracting their "pos" members and returning the result.


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Keith Lynn
Ranch Hand

Joined: Feb 07, 2005
Posts: 2367
You could either modify the definition of LimitSet to implement Comparable or create a Comparator to use to call Collections.sort
 
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subject: Sorting vectors