'Hello World' - window disappears as soon as I run.

This is a discussion on 'Hello World' - window disappears as soon as I run. within the C Programming forums, part of the General Programming Boards category; I compiled and ran the 'hello world' program - we're all familiar with it I'm sure, but I have the ...

  1. #1
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    'Hello World' - window disappears as soon as I run.

    I compiled and ran the 'hello world' program - we're all familiar with it I'm sure, but I have the following problem:

    When I run the .exe file the hello world window appears only for an instant, then disappears - I have no way of knowing what the window actually says. I can assume that it is saying Hello World, but how can I get it to stay on my screen?

    I am using the following code with Dev-C++:

    #include <iostream>

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


    Any help is greatly appreciated. I wouldnt mind getting this stumbling block behind me so I can start to really learn.

  2. #2
    Gawking at stupidity
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    Well, that's a C++ program and this is a C Programming board, but you could add this line:
    Code:
    getchar();
    ...right above your return 0; line. When you run it just press ENTER to close the window.
    If you understand what you're doing, you're not learning anything.

  3. #3
    ... kermit's Avatar
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    Perhaps this is what you are after?

    [quzah mode]
    Curses! Foiled Again!
    [/quzah mode]

    ~/

  4. #4
    ATH0 quzah's Avatar
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    There are a few problems with you and your post:
    1) You didn't read the Announcements, like you were supposed to.
    2) You didn't use [code] tags, because of #1.
    3) You posted C++ code on the C board because you're a dumbass.^H^H^H^H^H^H^H^H^Hnot paying attention.

    Holy deja vu, Batman!

    Quzah.
    Hope is the first step on the road to disappointment.

  5. #5
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    Code:
    #include <iostream>
    
    int main()
    {
    std::cout << "Hello World!\n";
    std::cout<<"\n";   <-------------------- add this statement
    return 0;
    }

  6. #6
    Gawking at stupidity
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    Quote Originally Posted by naruto
    Code:
    #include <iostream>
    
    int main()
    {
    std::cout << "Hello World!\n";
    std::cout<<"\n";   <-------------------- add this statement
    return 0;
    }
    That will print another newline but won't do anything about keeping the window open like the OP wants.
    If you understand what you're doing, you're not learning anything.

  7. #7
    ATH0 quzah's Avatar
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    But you could always add:
    Code:
     {char x; std::cin >> x;} //all nice and self-contained
        return 0;
    }


    Quzah.
    Hope is the first step on the road to disappointment.

  8. #8
    Registered User Chubz's Avatar
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    Isn't, adding "cin.get ()" before the "return 0;" another solution, or is that used for something else????

    i'm new to programming too, but on the C++ forums I think I saw that part of code somewhere and on one of my programs it helped it show.

  9. #9
    Gawking at stupidity
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    Quote Originally Posted by Chubz
    Isn't, adding "cin.get ()" before the "return 0;" another solution, or is that used for something else????

    i'm new to programming too, but on the C++ forums I think I saw that part of code somewhere and on one of my programs it helped it show.
    Yes, cin.get() will work too. The whole reasoning behind these different solutions is to ask the user for input. The input will be ignored, but it forces the user to press ENTER (like they'd normally do after typing some input) before the window will close. Any function that waits for the user to input something will be a solution to this problem.
    If you understand what you're doing, you're not learning anything.

  10. #10
    ATH0 quzah's Avatar
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    I like this one:
    Code:
    for( ; ; );
    Quzah.
    Hope is the first step on the road to disappointment.

  11. #11
    Registered User Chubz's Avatar
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    Quote Originally Posted by itsme86
    Yes, cin.get() will work too. The whole reasoning behind these different solutions is to ask the user for input. The input will be ignored, but it forces the user to press ENTER (like they'd normally do after typing some input) before the window will close. Any function that waits for the user to input something will be a solution to this problem.
    Ah ok - nice try for a newb, at least!

  12. #12
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    Quote Originally Posted by quzah
    I like this one:
    Code:
    for( ; ; );
    Quzah.
    wouldnt that be a major waste of clock cycles?

  13. #13
    moi
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    Yes.
    hello, internet!

  14. #14
    BMJ
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    lol!

  15. #15
    ATH0 quzah's Avatar
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    Quote Originally Posted by sand_man
    wouldnt that be a major waste of clock cycles?
    No. That would be fully utilizing your processor, which otherwise would be wasting clock cycles doing nothing.

    Quzah.
    Hope is the first step on the road to disappointment.

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