comp sci 1000 level

https://docs.google.com/document/d/1f9TGqV-a-q2ibu13niV-PxpzfCBESA49TD7Yy6z2sAA/edit?usp=sharing

I'm not sure if I should seperate #1 & #2 or not. If so, please ignore #2.

1. Create three classes Data, Single, and List, as follows Create an abstract class Data, which will contain no instance variables, no constructor, and only one method: double valueOf() which returns 0.0 a. b. Create a class Single which is a subclass of Data, and which will store one double value. Provide a constructor to initialize the value. Override the valueOf () method so that it returns this value Create a class List which is a subclass of Data, and which will store a double[] array. Provide a constructor List(double[] a) which will initialize this array Override the value0f() method so that it returns the sum of all the doubles in the array. Note that this will always be a full array, not a partially full array. There will be no separate length variable. c. 2. Start with the TemplateLab6.java file. It creates a list of Data objects (both Single and List) using a Datal] array. Take a look a it. Add a loop at the indicated position which will find and print the sum of all seven doubles that appear in the array, using valueof(). It should print the line The sum of everything is 35.8