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C++ 9th Edition: Chapter 6 Functions Quiz

6 Questions

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C++ 9th Edition: Chapter 6 Functions Quiz

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Questions and Answers

What is the primary benefit of modular programming?

Enhances program execution speed

Reduces memory usage

Simplifies the process of creating graphical user interfaces

Improves code readability and maintainability (correct)

What is the difference between a function call and a function definition?

A function call executes the function, while a function definition specifies the function's logic (correct)

There is no difference; they are interchangeable terms

A function call returns a value, while a function definition does not

A function call defines the function's parameters, while a function definition specifies the function's body

What are the essential components of a function definition?

Return type, name, parameter list, body (correct)

Return type, name, body, comments

Name, parameter list, body, execution time

Name, parameter list, body, comments

Which of the following is NOT a valid reason for using functions in a program?

To enhance program execution speed Signup and view all the answers

In the function definition `int calculate(int x, int y)`, what does `int` represent before the function name?

The data type of the values returned by the function Signup and view all the answers

What is the significance of the line `int main()` in a C++ program?

It defines the main function where program execution begins Signup and view all the answers

Study Notes

Modular Programming

Modular programming involves breaking a program into smaller, manageable functions or modules to improve maintainability and simplify the process of writing programs.

Functions

A function is a collection of statements that perform a specific task.
Functions can be called multiple times from different parts of a program.

Defining and Calling Functions

A function call is a statement that causes a function to execute.
A function definition consists of statements that make up a function.

Function Definition

A function definition includes:
- Return type: the data type of the value returned to the part of the program that called the function.
- Name: the name of the function, following the same rules as variables.
- Parameter list: variables containing values passed to the function.
- Body: statements that perform the function's task, enclosed in {}.

Note

The function header is the line that starts with the return type, such as int main().

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Description

Test your knowledge on modular programming and functions in C++ with this quiz based on Chapter 6 of 'Starting Out with C++ 9th Edition'. Explore the benefits of modular programming, functions, and the importance of breaking a program into smaller modules.