Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Aprenda User Input | Variables
Introduction to C++ | Mobile-Friendly

book
User Input

We already know how to output the data with the object cout and operator <<. However, sometimes we need to get values directly from the user. To enable this operation use cin in combination with the extraction operator >>.

python
cin >> x; // Get the value for the variable x

For example, here we want to get the value for the variable a and output it:

python
01 #include <iostream>
02 using namespace std;
03
04 int main() {
05 // Declare the variable
06 int a;
07
08 // Print the message for user to get the value
09 cout << "Print a number: ";
10
11 // Get user input
12 cin >> a;
13
14 // Display the input of the user
15 cout << "Your number is: " << a;
16
17 return 0;
18 }

In the line #12 the user print the value which will be stored in the variable a.

question mark

Which line should be used to get the user input and store it in the variable x?

Select the correct answer

Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 2. Capítulo 3

Pergunte à IA

expand
ChatGPT

Pergunte o que quiser ou experimente uma das perguntas sugeridas para iniciar nosso bate-papo

some-alt