Casting with str(), int(), and float() Functions Quiz

An if statement in Python is used to execute a block of code only if a certain condition is True.

The components required for an if statement in Python are the if keyword, a condition (evaluating to True or False), a colon, and an indented block of code.

In plain English, an if statement can be read as 'If this condition is true, execute the code in the clause.'

<p>When the condition in an if statement is False, the code block under it is skipped.</p> Signup and view all the answers

<p>The purpose of the str() function is to convert a value to a string data type.</p> Signup and view all the answers

<p>You would use the int() function when you have a number as a string value that you want to use in mathematics or when you need to round a floating-point number.</p> Signup and view all the answers

<p>If you pass a value to int() that it cannot evaluate as an integer, Python will display a ValueError.</p> Signup and view all the answers

<p>To treat a string variable as an integer, you can use the int() function to convert the string to an integer and store it back in the variable.</p> Signup and view all the answers

<p>Print out the text in the string 'Hello world!'</p> Signup and view all the answers

<p>A value that is passed to a function call</p> Signup and view all the answers

<p>Waits for the user to type some text on the keyboard and press ENTER</p> Signup and view all the answers

<p>Because the + operator can only add two integers or concatenate two strings</p> Signup and view all the answers