# FAQ: Variables: Lesson - Initialization

This community-built FAQ covers the “Initialization” exercise from the lesson “Variables: Lesson”.

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This exercise can be found in the following Codecademy content:

## FAQs on the exercise Initialization

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code attached:

printf(“Number of books: %i\n”, numOfBooks);
printf(“Your Favorite Letter is: %c\n”, favLetter);
printf(“Your Favorite Digit is: %c\n”, favDigit);
printf(“You expect to pay \$%.2f for a candy bar.\n”, costOfCandyBar);
}

i understand the %i and %c functions, but why is there a %.2f rather than just %f in the last print statement?

Hi! The ‘.2’ represents the number of decimal places that will be displayed and the ‘f’ represents the variable type (float or double).

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