C++ Fundamentals · Operators & Conditionals · Lesson 8 of 24

if / else if / else

Concept

if / else if / else

Conditionals run different blocks of code depending on whether an expression evaluates to true.

By the end of this lesson

Explain the core idea behind if / else if / else.
Predict output before running a change.
Test one realistic and one unusual input.
Use the result to make the next decision.

How to study this page

1. Read one concept.
2. Change the example.
3. Run, compare, and explain.
4. Complete the challenge below.

ExampleRunnable

int score = 85;
if (score >= 90) {
    std::cout << "A";
} else if (score >= 80) {
    std::cout << "B";
} else {
    std::cout << "C";
}

Try it Yourself »

Self-check before continuing

Without looking at the example, describe what changes when you modify one input in if / else if / else. Then reopen the editor and prove your explanation with a small test.

You are ready to continue when you can predict, test, and explain the result.

Your turn

Write an if/else chain that prints "Pass" for scores 60 and above.

Loading editor…

Console

Output will appear here...