This is runner code: import java.util.Scanner; import java.util.ArrayList;

public class runner_U7_L2_Activity_Two{

public static void main(String[] args){ Scanner scan = new Scanner(System.in); ArrayList vals = new ArrayList(); System.out.println("Enter ArrayList length:"); int len = scan.nextInt(); System.out.println("Enter values:"); for(int i = 0; i Instructions Write a public static method named average which takes an ArrayList of Double objects, and returns the average of the values in this list. Write your average method in the U7_L2_Activity Two class. Use the runner class to test your method but do not add a main method to the U7_L2_Activity Two.java file or your code will not be scored correctly. Hint: when your method header, and specify the type of the parameter as an ArrayList , make sure you include the data type your ArrayList will contain in angle brackets (). you write