Quiz - print() function

What is the primary purpose of the print function in programming?

• To print text to the screen

• To save data to a file

• To compile the program

• To debug the code

Answer explanation

The primary purpose of the print function is to display text to the screen, allowing programmers to output information for users or for debugging purposes. Thus, the correct choice is 'To print text to the screen'.

Which of the following is a correct way to use the print function?

• PRINT('Hello World!')

• print 'Hello World!'

• print('Hello World!')

• Print('Hello World!')

Answer explanation

The correct way to use the print function in Python is 'print('Hello World!')'. This syntax uses lowercase 'print' and includes parentheses, which are required in Python 3. The other options are incorrect due to case sensitivity or missing parentheses.

What is the result of using a capital 'P' in the print function?

• The program will print nothing

• A SyntaxError will occur

• The program will run successfully

• A NameError will occur

Answer explanation

Using a capital 'P' in the print function results in a NameError because Python is case-sensitive. The correct function is 'print' with a lowercase 'p', and using 'Print' will cause Python to not recognize it.

What is the purpose of escape codes in Python?

• To enhance security

• To save memory

• To print unprintable characters

• To execute code faster

Answer explanation

Escape codes in Python are used to represent unprintable characters, such as newline or tab, in string literals. This allows for better formatting and control over the output, making the correct choice 'To print unprintable characters'.

Which escape code is used to print a new line?

• \t

• \r

• \n

• \"

Answer explanation

The escape code \n is used to print a new line in many programming languages. The other options serve different purposes: \t is for a tab, \r is a carriage return, and \" is for a double quote.

What does PEP-8 refer to in Python programming?

• A version control system

• A type of error

• A style guide for formatting code

• A debugging tool

Answer explanation

PEP-8 is the Python Enhancement Proposal that provides guidelines and best practices for writing clean and readable code. It emphasizes code formatting, making 'A style guide for formatting code' the correct choice.

How can you print multiple lines of text using a single print statement?

• Using a for loop

• Using multiple print functions

• Using escape codes

• Using triple quotes

Answer explanation

You can print multiple lines of text using triple quotes in Python. This allows you to include line breaks directly in the string, making it easy to format multi-line output in a single print statement.

What is the output of the following code: print("Hello\nWorld")?

• Hello World

• Hello World

• Hello World

• Hello World!

Answer explanation

The code prints 'Hello' followed by a newline and then 'World'. The correct output is 'Hello\nWorld', which appears as 'Hello' on one line and 'World' on the next line, matching the choice 'Hello\nWorld'.

What is a common mistake when setting up PyCharm for the first time?

• Not saving the project

• Using the wrong version of PyCharm

• Opening the wrong folder

• Not installing Python

Answer explanation

A common mistake when setting up PyCharm is opening the wrong folder. This can lead to confusion as the IDE may not recognize the intended project structure, affecting development. Ensuring the correct folder is opened is crucial.

What is the purpose of the 'exit code' in a program?

• To indicate the program's success or failure

• To compile the program

• To print the output

• To debug the code

Answer explanation

The 'exit code' is used to indicate the program's success or failure. A code of 0 typically means success, while any non-zero code indicates an error, helping users and other programs understand the outcome of the execution.