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Oppiskele User Input | Variables
Introduction to C++ | Mobile-Friendly

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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 >>.

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:

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

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