Reusability and maintenance - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does reusability mean in programming?

Reusability means writing code that can be used again in different parts of a program or in other programs without rewriting it.

beginner

Why is maintenance important in programming?

Maintenance means fixing bugs and updating code easily. Good maintenance saves time and keeps programs working well over time.

beginner

How do functions help with reusability in C?

Functions let you write a block of code once and call it many times, so you don’t repeat the same code everywhere.

intermediate

What is the role of header files (.h) in C for maintenance?

Header files store function declarations and constants. They help keep code organized and make it easier to update or fix parts without changing everything.

beginner

Name one way to improve code maintenance in C.

Using clear variable names and comments helps others understand the code, making it easier to fix or improve later.

What is a key benefit of writing reusable code?

A Code uses more memory

B Code runs faster

C Code becomes harder to read

D You write less code and save time

Reusable code means you don’t have to write the same code again, saving time and effort.

Which C feature helps you reuse code easily?

A Functions

B Comments

C Variables

D Macros

Functions let you write code once and call it many times, making code reusable.

What does maintenance NOT include?

A Deleting the whole program

B Adding new features

C Fixing bugs

D Improving code readability

Maintenance involves improving and fixing code, not deleting the entire program.

How do header files (.h) help with maintenance?

A They increase program size

B They make code run faster

C They store function declarations separately

D They hide all code from the user

Header files keep function declarations separate, making it easier to update code without changing everything.

Which practice improves code maintenance?

A Using unclear variable names

B Adding comments to explain code

C Avoiding code formatting

D Writing long, complex functions

Comments help others understand the code, making maintenance easier.

Explain how writing functions in C improves reusability and maintenance.

Think about how you can use the same code multiple times without rewriting it.

Describe two ways to make C code easier to maintain.

Consider how others can understand and fix your code later.