empty listOfDoubles successfully created

and confirmed to be empty. 

Pushed 1.1 on front 
List now contains: 1.1

Pushed 2.2 on front 
List now contains: 2.2 , 1.1

Pushed 3.3 on front 
List now contains: 3.3 , 2.2 , 1.1

Pushed 4.4 on front 
List now contains: 4.4 , 3.3 , 2.2 , 1.1

Pushed 5.5 on front 
List now contains: 5.5 , 4.4 , 3.3 , 2.2 , 1.1

Pushed 6.6 on front 
List now contains: 6.6 , 5.5 , 4.4 , 3.3 , 2.2 , 1.1

and is now not empty. 

listOfDoubles contains 6 elements. 
Specifically: 6.6 , 5.5 , 4.4 , 3.3 , 2.2 , 1.1

Now we double all values: and get ...: 13.2 , 11 , 8.8 , 6.6 , 4.4 , 2.2

Now we reverse the list and get: 2.2 , 4.4 , 6.6 , 8.8 , 11 , 13.2

and reverse it again and get: 13.2 , 11 , 8.8 , 6.6 , 4.4 , 2.2

Backwards that is ... 2.2 , 4.4 , 6.6 , 8.8 , 11 , 13.2

The item at the front is: 13.2

The item at the back is: 2.2

Popped from the front, listOfDoubles now contains 5 elements. 
Specifically: 11 , 8.8 , 6.6 , 4.4 , 2.2

Backwards that is ... 2.2 , 4.4 , 6.6 , 8.8 , 11

Popped from the front, listOfDoubles now contains 4 elements. 
Specifically: 8.8 , 6.6 , 4.4 , 2.2

Backwards that is ... 2.2 , 4.4 , 6.6 , 8.8

Popped from the front, listOfDoubles now contains 3 elements. 
Specifically: 6.6 , 4.4 , 2.2

Backwards that is ... 2.2 , 4.4 , 6.6

Popped from the front, listOfDoubles now contains 2 elements. 
Specifically: 4.4 , 2.2

Backwards that is ... 2.2 , 4.4

Popped from the front, listOfDoubles now contains 1 elements. 
Specifically: 2.2

Backwards that is ... 2.2

Popped from the front, listOfDoubles now contains 0 elements. 
Specifically: 
Backwards that is ... 
Can we reverse an empty list??
Yes!!