2D Lists and Arrays

Is this a List or an Array?

I can store multiple values of different data types

• List

• Array

Is this a List or an Array?

Once made it's impossible to change the number of elements I store.

• List

• Array

Is this a List or an Array?

I cannot store values of different data types. I can only store multiple pieces of data when they are the same data type.

• List

• Array

Is this a List or an Array?

I am an infinite data structure - I can take many additional values once I've been created.

So you can add as many elements to me as you want.

• List

• Array

What is the number of the index of the first value in a list?

• 0

• 1

• 2

• start

An index is ...

• A number given to each value in a list to show it's position in the list.

• A number assigned to every value in the list to say how many characters it contains.

• A number assigned to every list.

• A letter given to each value in a list to show it's position in the list.

Fruits = [["Apple","Pear","Orange"],["Grape","Pineapple",'Pen"]]

How many rows are in the 2D list above?

• 0

• 1

• 2

• 3

Fruits = ["Apple","Pear","Orange","Grape","Pineapple",'Pen"]

What will be displayed if I type in:

print(Fruits[2])

• Orange

• Apple

• Pear

• Grape

Fruits = [["Apple","Pear","Orange"],["Grape","Pineapple",'Pen"]]

How many columns are in the 2D list above?

• 0

• 1

• 2

• 3

Fruits = [["Apple","Pear","Orange"],["Grape","Pineapple",'Pen"]]

What is the element in Fruits[2][1]?

• Grape

• Pineapple

• Nothing, It doesn't exist

• Orange