Computer Science

the process of extracting a specific substring

a character set that represents each  character with a unique numerical value

Substrings

String handling

String manipulation

Arrays and lists

List methods

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

a function that counts characters in a string

a part of a string extracted using slicing

What will the following Python code output?
```word = "HELLO"
print(word[1:4])```

What is the correct syntax to extract the substring "pin" from "pineapple", which is stored in the variable fruit?

The stop index in slicing is included in the substring.

The stop index in slicing is excluded from the substring.

Slicing does not work with numbers in a string.

Which of the following statements about slicing in Python is true?

How do you check if the substring "apple" is in the string "pineapple"?

prints the ASCII value of the entered character

What does the following Python program do?
```char = input("Enter a character: ")
print(ord(char))```

a sequence of characters, including letters, numbers and symbols

a function that counts elements in a list

How do you determine the length of a string in Python?

What will this program output?
```word = "Python"
print(word[3]) ```

The program will crash with an "IndexError".

What will happen if you try to access an index that is greater than or equal to the string length?

What does the following code print?
```word = "hello"
print(word[-1])```

What does the following code output?
```word = "hello"
for letter in word:
    print(letter)```

This lesson was made for home learning during the pandemic.

Substrings

Lesson outcome

This lesson was made for home learning during the pandemic.