Hello World Closes Automatticaly HELP!!!

This is my first little program and everything looks good, but the problem I got is That the cmd window closes by itself, This is the code I am using from the Book Accelerated C++

I always get thismessage "The program '[5676] project.exe: Native' has exited with code 0 (0x0)."

Code:

---

#include <iostream>

int main()
{
        std::cout <<"Hello World" << std::endl;
        return 0;
}

---

I am using Visual C++ 2010 express. Win 7 64bit.

Thank you

use
system("pause") ;
before return 0;

The message you get means your code compiled successfully.
No mystery there.

Quote:

---

Originally Posted by Eman

use
system("pause") ;
before return 0;

The message you get means your code compiled successfully.
No mystery there.

---

ok,

but I read someplace in these forums that using system("pause") is not a good practice.

Quote:

---

Originally Posted by Eman

use
system("pause") ;
before return 0;

The message you get means your code compiled successfully.
No mystery there.

---

IT DOES WORK!!! THANK YOU.

WHAT ABOUT

system("pause") ;

is it good to use it.

Quote:

---

Originally Posted by BadAssjoe

ok,

but I read someplace in these forums that using system("pause") is not a good practice.

---

It's not a good practice.

Use cin.get() to wait for another character to be pressed before having the window closed.

The reason system("pause") is wrong can be found here.

System("pause"); - Why is it wrong? - Stack Overflow

Quote:

---

Originally Posted by claudiu

It's not a good practice.

Use cin.get() to wait for another character to be pressed before having the window closed.

---

cin.get() before return 0;

gives me a error. do I need to include# < ????>

Thank you

Oh sorry, I guess in your program it would be std::cin.get(), since you haven't included the standard namespace. (don't worry about what that means if you are a beginner :) ).

Quote:

---

Originally Posted by claudiu

Oh sorry, I guess in your program it would be std::cin.get(), since you haven't included the standard namespace. (don't worry about what that means if you are a beginner :) ).

---

Nope still error

Code:

---


#include <iostream>

int main()
{
        std::cout <<"Hello World" << std::endl;
        std::cin.get();
        return 0;
}

---

Thanks again

Quote:

---

Originally Posted by BadAssjoe

Nope still error

Code:

---


#include <iostream>

int main()
{
        std::cout <<"Hello World" << std::endl;
        std::cin.get();
        return 0;
}

---

Thanks again

---

Sorry I DID WORK!

I did not rebuild it.


Thanks

I didn't know that system("pause") was a bad idea sorry. Just starting C++ myself.

What I know though is, that using cin.get() does not always work.
if I use I use 3 cin.get() it never works at times.
But system("pause") always works for me. which was why I recommended it.
Anyways glad to be of some help in a way :)

Quote:

---

Originally Posted by Eman

I didn't know that system("pause") was a bad idea sorry. Just starting C++ myself.

What I know though is, that using cin.get() does not always work.
if I use I use 3 cin.get() it never works at times.
But system("pause") always works for me. which was why I recommended it.
Anyways glad to be of some help in a way :)

---

Thanks, man.

Now I know two different ways to do it.

Another way that removes the need for cin.get() or system("pause") is that you use the command prompt (CMD) if you use windows or the terminal if you use unix/linux/mac. Navigate to the folder where your compiled program is and run it through the command prompt or terminal depending on your operating system and you will see all the output until you close the command prompt / terminal.

(A trick on Windows to make it easier, shift + right click on the folder with your program inside and chooce open with command prompt here and you don´t have to use cd to navigate there)

Quote:

---

Originally Posted by Eman

I didn't know that system("pause") was a bad idea sorry. Just starting C++ myself.

What I know though is, that using cin.get() does not always work.
if I use I use 3 cin.get() it never works at times.
But system("pause") always works for me. which was why I recommended it.
Anyways glad to be of some help in a way :)

---

Then use cin.ignore() to ignore the nl that is bothering you

This code fragment wont work as you might expect:

Code:

---

#include <iostream>

int main()
{
    char c;
    std::cout << "Type a character: ";
    c = std::cin.get();
    std::cout << "You typed: " << c;
    std::cin.get();

    return(0);
}

---

But this one will:

Code:

---

#include <iostream>

int main()
{
    char c;
    std::cout << "Type a character: ";
    c = std::cin.get();
    std::cin.ignore();
    std::cout << "You typed: " << c;
    std::cin.get();

    return(0);
}

---

IDE have options some times to keep the window open. In any case, whatever works, these are test codes anyway.

The following:

Code:

---

system("pause");

---

is discourteous to Linux users like me who run people's code here.








Actually, I am kidding, it doesn't bother me that much, it's just the principle of the thing: try to avoid platform-dependent code when possible.