Page 416 - Computer_Science_F5

Chapter Summary
Reflect on what you have learnt from this chapter, summarise and keep it in your
portfolio.
FOR ONLINE READING ONLY
Revision Exercise 6
1. Write Python code to calculate the
area of a rectangle with length 5
units and width 3 units. Print the
result.
2. Write a Python program that asks
the user to input their age. If the
age is greater than or equal to 18,
print “You are an adult”. Otherwise,
print “You are a minor”.
3. Create a list of your favorite fruits.
Write a Python program that uses a
for loop to iterate through the list
and print each fruit name on a new
line.
4. Define a Python function called
calculate_cube that takes an integer
parameter side_length and returns
the volume of a cube with that side
length. Test the function with a side
length of 4 units.
5. Write a Python program that
prompts the user to enter their full
name. Print the initials of their first
name and last name in uppercase
letters. For example, if the user
inputs “Mtukula Jamaasoni”, the
output should be “MJ”.
407
Student’s Book Form Five
Computer Science Form 5.indd 407
Chapter Six: Object oriented programming with Python
6. Write a Python program that reads
a text file named “grades.txt”. Each
line in the file contains a student’s
name followed by their grade (for
example, “Mponjoli 97”). Your
program should calculate and print
the average grade for all students.
Handle any possible exceptions that
may occur during file reading or
grade calculation.
7. Explain the concept of
polymorphism in Python OOP and
provide a real-world example.
8. How does encapsulation enhance
data security and privacy in Python
classes? Give an example.
9. Describe the process of inheritance
in Python and discuss its advantages
in code reusability.
10. What is the purpose of an abstract
class in Python? Provide an example
of defining and implementing an
abstract class.
11. How can you achieve method
overriding in Python classes?
Provide a scenario where method
overriding is useful.
12. Discuss the difference between
class attributes and instance
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