Mastering C++: A Comprehensive Quiz Based on 'Thinking in C++'

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the C++ exam based on 'Thinking in C++'. Engage with challenging quiz questions designed to boost your understanding and proficiency in C++. Get prepared to master C++ programming concepts through an interactive and informative quiz experience!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What must be done before 'oneChar()' can return characters from the string 'a'?

Call 'oneChar()' with no arguments
Call 'oneChar(a)' to initialize 's' to 'a'
Declare 'a' as a global variable
Manually set 's' to the start of 'a'

The correct answer is: Call 'oneChar(a)' to initialize 's' to 'a'

Before 'oneChar()' can return characters from the string 'a', the function must first be initialized with the string 'a'. This is done by calling 'oneChar(a)' which will set the value of 's' to be equal to 'a'. Option A is incorrect because simply calling 'oneChar()' without any arguments will not initialize 's' to the string 'a'. Option C is incorrect because declaring 'a' as a global variable does not automatically set the value of 's' to be equal to 'a'. Option D is incorrect because manually setting 's' to the start of 'a' does not initialize the function with the string 'a'.