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C++ Fundamentals · Variables & Data Types · Lesson 6 of 24

Type Casting

Concept

Type Casting

static_cast converts a value from one type to another, such as an int to a double for precise division.

By the end of this lesson
  • Explain the core idea behind Type Casting.
  • 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. 1. Read one concept.
  2. 2. Change the example.
  3. 3. Run, compare, and explain.
  4. 4. Complete the challenge below.
ExampleRunnable
int a = 7;
int b = 2;
double result = static_cast<double>(a) / b;
Try it Yourself »
Self-check before continuing

Without looking at the example, describe what changes when you modify one input in Type Casting. 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

Cast an int to a double and divide it by another int to get a decimal result.

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Console

Output will appear here...