sort and group a java collection

Question

I have an object which has a name and a score. I would like to sort a collection of such objects so that they are grouped by name and sorted by maximum score in each group (and

Answer 1

public class ScoreComparator implements Comparator
{

  public int compare(Item a, Item b){

    if (a.name.equals(b.name){
      return a.score.compareTo(b.score);
    }

    return a.name.compareTo(b.Name);    

  }

}