QtCreator 2.4.1 console input - qt

Question

I'm somewhat new to C++ and QT.
Trying to run a very simple program in QtCreator, which uses console input on WinXP:
#include <QString>
#include <QTextStream>
int main() {
QTextStream streamOut(stdout);
QTextStream streamIn(stdin);
QString s1("This "), s2("is a "), s3("string.");
QString s4 = s1 + s2 + s3;
streamOut << s4 << endl;
streamOut << "The length of that string is " << s4.length() << endl;
streamOut << "Enter a sentence with whitespaces: " << endl;
s4 = streamIn.readLine();
streamOut << "Here is your sentence: \n" << s4 << endl;
streamOut << "The length of your sentence is: " << s4.length() << endl;
return 0;
}
Problem is that native QTCreator's application output, for it's name, doesn't support typing in things. Here is application output:
Starting C:\QProject\test-build-desktop-Qt_4_8_0_for_Desktop_-MinGW_Qt_SDK___>z>>\debug\test.exe...
This is a string.
The length of that string is 17
Enter a sentence with whitespaces:
Qml debugging is enabled. Only use this in a safe environment!
I've tried checking "Run in terminal" in Projects>Desktop>Run as some answers to similar questions here suggested and the terminal shows up, but it doesn't seem to interact with the program anyhow. Terminal's output:
Press RETURN to close this window...

Answer 1

I would say that checking Run in terminal is correct and needed.
What is surprising is that you don't get any compile error, as there is a mistake at line 8 :
cout << "Enter a sentence: "<<;
The last << is wrong.
Correcting your code, I get this :
#include <QString>
#include <QTextStream>
QTextStream cout(stdout);
QTextStream cin(stdin);
int main() {
QString s2;
cout << "Enter a sentence: ";
s2 = cin.readLine();
cout << "Here is your sentence:" << s2 << endl;
cout << "The length of your sentence is: " << s2.length() << endl;
return 0;
}
which works fine on my computer (WinXP, QtCreator 2.2.0).
Are you sure your Qt project is correct and that you are compiling the right file ?