Computer Science

add an item to a given position in a list

remove an item from a given index in a list

counting the number of occurrences of a given item

List methods

String handling

Substrings

String manipulation

Arrays and lists

2D arrays and lists

2D lists challenge

Programming project - Sense HAT I

Programming project - Sense HAT II

This unit introduces pupils to string-handling techniques, they will explore how a string can be iterated over using a loop and sliced to create substrings. Pupils will be introduced to arrays and lists and explore the differences between the two. They will manipulate with a variety of list methods.

Programming: strings and lists

adds an item to a specific position in a list

Which method would you use to remove an item from a list at a specific index?

What will be the output of this code?
```shopping = ["bread", "cheese", "milk"]
print(shopping.count("cheese"))```

If no argument is provided to the `pop()` method, which item is removed from the list?

What will be the output from this code?
```numbers = [3, 6, 9, 12]
numbers.insert(2, 15)
print(numbers)```

a data structure that has a fixed size in memory

a data structure that can grow or shrink to accommodate items

a static data structure that contains items of the same data type

a dynamic data structure that can contain items of different types

An {{}} is fixed in size and can only contain data of the same type.

items don't have to be of the same data type

Which of the following are characteristics of a list?

Which brackets are used when defining a list in Python?

What is the identifier in this list?
```planets = ["Mercury", "Venus",
           "Earth", "Mars",
           "Jupiter", "Neptune",
           "Saturn"]```

In this list, which item is held in index position 2?
```planets = ["Mercury", "Venus",
           "Earth", "Mars",
           "Jupiter", "Neptune",
           "Saturn"]```

Exit Quiz

What does the append() method do?