How to average integers from a LinkedList

[vishal1949]

I want to find the average score of a LinkedList. My code is

/*
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package bowlinggame;

import java.util.LinkedList;
import java.util.TreeSet;

public class BowlingGame {   
    
    public static void main(String[] args) 
    {
        TreeSet <String>PlayerNames = new TreeSet<String>();
        PlayerNames.add("Steve");
        PlayerNames.add("James");
        PlayerNames.add("Bob");

        LinkedList <Integer>SteveScore = new LinkedList<Integer>();
        SteveScore.add(205);
        SteveScore.add(240);//the average of these
        SteveScore.add(189);
        LinkedList <String>SteveDate = new LinkedList<String>();
        SteveDate.add("07/12/2009");
        SteveDate.add("08/01/2009");
        SteveDate.add("02/27/2010");
        
        LinkedList <Integer>JamesScore = new LinkedList<Integer>();
        JamesScore.add(265);
        JamesScore.add(220);The average of these
        JamesScore.add(280);
        LinkedList <String>JamesDate = new LinkedList<String>();
        JamesDate.add("05/24/2009");
        JamesDate.add("08/07/2009");
        JamesDate.add("09/18/2010");
             
        LinkedList <Integer>BobScore = new LinkedList<Integer>();
        BobScore.add(205);
        BobScore.add(230);// the average of these
        BobScore.add(193);
        LinkedList <String>BobDate = new LinkedList<String>();
        BobDate.add("09/12/2009");
        BobDate.add("06/03/2010");
        BobDate.add("02/14/2011");
        
        System.out.println("Steve played " + SteveScore.size() + " games and the" + " last score he got was " + SteveScore.getLast() + " and that was on " + SteveDate.getLast());
        System.out.println("James played " + JamesScore.size() + " games and the" + " last score he got was " + JamesScore.getLast() + " and that was on " + JamesDate.getLast());
        System.out.println("Bob played " + BobScore.size() + " games and the" + " last score he got was " + BobScore.getLast() + " and that was on " + BobDate.getLast());
    }
}

[NormR1]

I assume you have the normal definition for average: the sum / count

What is your problem doing this?

[vishal1949]

I assume you have the normal definition for average: the sum / count

What is your problem doing this?

Well I can't do it because it is inside a linkedList. How would I call all the elements inside the list. I know it is the sum / count but how would I sum it

[singh_soorma94]

You could always use an Iterator to add them up and get the average

float Steveavg = 0;
        ListIterator<Integer> it = SteveScore.listIterator(SteveScore.size());
        while (it.hasPrevious()) 
        {
            float sum = it.previous();
            Steveavg += sum/SteveScore.size();
        }

For the rest you could just change the name