how to accept user input???

Question

what i have to write when ''Seems like your program requires input'' shows ?? on that function

#include <iostream>
using namespace std;

int main()
{
int a;
cout << a+5;
cin >> a;

cout << a;

return 0;
}

give me some examples, please... i cant understand :/

Answer 1

cout is used to send output to console
and
cin use for input that take user input
in your program cin has used for get value from user and insert it to variable, it is compulsory to store data in a variable.

Answer 2

Hi
check this link :
http://www.cplusplus.com/doc/tutorial/basic_io/

Answer 3

thx :)

Answer 4

You are adding 5 to an unassigned variable a.
First of all, cout stands for "console output", so you output data like text or numbers. cin stands for "console input", so, for example, cin >> a; you assingn value to variable a.

#include <iostream>

using namespace std;

int main(){

int a; // Okay, you created variable a.
cin >> a; //Waiting for user input, for example, number 3.
cout << a + 5; //Adds a, which is 3 with 5 and output will be 8;
return 0;
}