C Quiz
Test yourself on everything in this C tutorial. Choose an answer, then read the explanation.
Before You Start
- Answer from memory first
- If you miss a question, go back to that chapter
- Type the code into a compiler to see the result for yourself
Quiz Questions
Exercise
Which header file do you need for printf and scanf?
Exercise
What does printf("%.2f", 3.14159); print?
Exercise
What is the result of 15 / 4 when both are int?
Exercise
Why does scanf("%d", &age) use the & sign?
Exercise
Which loop always runs its body at least once?
Exercise
For int a[4] = {5, 6, 7, 8}; what is a[3]?
Exercise
Which function returns the length of a string?
Exercise
What does strcmp return when two strings are equal?
Exercise
If int x = 10; int *p = &x; *p = 20; what is x now?
What Next?
Well done on finishing the C tutorial. Practise by writing a marks calculator, a simple ATM menu or a number guessing game. When you are ready, move on to the C++ tutorial, which builds on everything you learned here.