How do i use an ArrayList to store scores and add up scores

hi, I'm needing help with a program that i don't understand how to
store 7 ArrayList scores and sum them up. the program instructions are
as follows.

This program calculates the scores for a contest in diving. The highest
and lowest scores are throwm out. The remaining are added together and
the sum is multiplyed by the degree of difficulty and 0.6. This program
uses and ArrayList to hold the seven scores and then scans the array
for the position of the largest and smallest scores.These positons are
then ignored in computing the sum of the scores.

here is the program and the compile errors that i'm getting. When i use
scores = keyboardnextDouble(); to enter the scores it won't work and
i'm wondering how to write the program so i can enter the scores and
store them. I would appreciate any help that i could get. thank Judith

//Author: Judith Spurlock

import java.util.ArrayList;
import java.util.Scanner;

//fill in code

public class program5JS
{
    public static void main(String[]args)
    {
    ArrayList<Double> scores = new ArrayList<Double>();
    int posMinScore, posMaxScore;
    double sum = 0;
    double difficulty;
    double finalScore;
    int i;
    Scanner keyboard = new Scanner(System.in);

    //Input data values

    System.out.println("Enter the degree of difficulty for the dive
(1.2-3.8).");
    difficulty = keyboard.nextDouble();

    //Input judges scores

    for (i = 1; i <= 7; i++)
    {
    System.out.println("Enter score for judge " + i + " (0-10).");
    scores = keyboard.nextDouble();
    }
    }

}

    //Find position of min score
    posMinScore = 0;
    for(i = 1; i < scores.size(); i++)
    {
    if(scores.get(i) < scores.get(posMinScore))
    posMinScore = i;
    }
    scores.remove(posMinScore)

    //Find position of max score
    posMaxScore = 0;
    for(i = 1; i > scores.size(); i++)
    {
    if(scores.get(i) > scores.get(posMaxScore))
    posMaxScore = i;
    }
    scores.remove(posMaxScore)//doesn't work how do i use the Array list
to store the scores?

    //sum scores
    for(i = 1; i < scores.size(); i++)
    {
    // fill in code
    }

    //Calculate total score
    finalScore = difficulty * sum * 0.6;
    System.out.println("The diver's final score is " + finalScore;

This is part of what it should look like but i don't know how to input
the scores in an ArrayList and sum them up

C:\>java program5JS
Enter the degree of difficulty for the dive (1.2-3.8).
1.2
Enter score for judge 1 (0-10).
2
Enter score for judge 2 (0-10).
4
Enter score for judge 3 (0-10).
5
Enter score for judge 4 (0-10).
7
Enter score for judge 5 (0-10).
8
Enter score for judge 6 (0-10).
6
Enter score for judge 7 (0-10).
5

Theese are the compile errors

C:\>javac program5JS.java
program5JS.java:31: incompatible types
found : double
required: java.util.ArrayList<java.lang.Double>
        scores = keyboard.nextDouble();
                                    ^
1 error

C:\>javac program5JS.java
program5JS.java:38: 'class' or 'interface' expected
        posMinScore = 0;
        ^
program5JS.java:39: 'class' or 'interface' expected
        for(i = 1; i < scores.size(); i++)
        ^
program5JS.java:48: 'class' or 'interface' expected
        for(i = 1; i > scores.size(); i++)
        ^
3 errors