standard input(cin>>)
please i will like someone to dymystify the use of the standard input for me.Anytime i call the function the output is always the cout that precedes it while subsequent cout expression(s) after it will not be outputed.e.g:
#include<iostream>
using namespace std;
int main()
{
int a;
cout<<"please enter an integer value:50"<<endl;
cin>>a;
cout<<"the value you entered is"<<a;
cout<<"and its double is"<<a*2<<"\n";
return 0;
}
The above code will only output:please enter an integer value:50.while:the value you entered is...and its double is... were not outputed.what went wrong.
after addind cout.flush() or endl instead of '\n' the output remains the same.pls help me out.
i appreciate you all but the question is:where will the integer 50 be input?because after running what btripp suggested i did not get the output he suggested and i figure the location of integer 50 might be responsible.thanks.
#include<iostream>
using namespace std;
int main()
{
int a;
cout<<"please enter an integer value:50"<<endl;
cin>>a;
cout<<"the value you entered is"<<a;
cout<<"and its double is"<<a*2<<"\n";
return 0;
}
The above code will only output:please enter an integer value:50.while:the value you entered is...and its double is... were not outputed.what went wrong.
after addind cout.flush() or endl instead of '\n' the output remains the same.pls help me out.
i appreciate you all but the question is:where will the integer 50 be input?because after running what btripp suggested i did not get the output he suggested and i figure the location of integer 50 might be responsible.thanks.
Last edited on
I have an idea of what you are trying to do. Why do you have the number 50 in the cout?? I think "50" is the number you actually want to enter right?? if so do this..
#include<iostream>
using namespace std;
int main()
{
int a;
cout<<"please enter an integer value: "<<endl; // see i removed 50 from the output
cin>>a; // when u call cin it is waiting for you to input an integer, and then it stores it in the variable "a"
cout<<"the value you entered is "<<a;
cout<<" and its double is "<<a*2<< endl; // also make this endl it is better than new line
system("pause"); // also add this code to pause the screen so you can see your code on the screen
return 0;
}
the following output will look like this on the screen if i were to input 50 as my number
please enter an integer value:
50
the value you entered is 50 and its double is 100
Please press enter to continue...
#include<iostream>
using namespace std;
int main()
{
int a;
cout<<"please enter an integer value: "<<endl; // see i removed 50 from the output
cin>>a; // when u call cin it is waiting for you to input an integer, and then it stores it in the variable "a"
cout<<"the value you entered is "<<a;
cout<<" and its double is "<<a*2<< endl; // also make this endl it is better than new line
system("pause"); // also add this code to pause the screen so you can see your code on the screen
return 0;
}
the following output will look like this on the screen if i were to input 50 as my number
please enter an integer value:
50
the value you entered is 50 and its double is 100
Please press enter to continue...
Bad advice:
see http://www.cplusplus.com/forum/articles/7312/ http://www.cplusplus.com/forum/articles/11153/
system("pause"); // also add this code to pause the screen so you can see your code on the screen see http://www.cplusplus.com/forum/articles/7312/ http://www.cplusplus.com/forum/articles/11153/
yea i figured it was for homework purposes, my fault for creating security issues in his project. Was my other information good advice though. Im new to the forums.
Topic archived. No new replies allowed.