"Hello World" ?!?!?!?!

[pcrobot]

I'm picking C++ back up, after about a year or so, and already I've got a problem...

I type in:

// my first program in C++

#include <iostream.h>

int main ()
{
cout << "Hello World!";
return 0;
}

I compile and run it using Bloodshed's Dev-C++ program, but it just flashes the DOS output for a split second, (so fast I can't see it) then DOS closes! What am I doing wrong?

Thanks!

 

[Emily]

I haven't programmed in C++ for years, but I think you need a system pause or something like that... system("PAUSE"); maybe.

 

[joseza82]

your doing nothing wrong dude,

just add a line so when u press retun key(for ex) u exit ur program

 

[Nikkon]

C/C++ belongs in a unix/linux IDE !

 

[pcrobot]

your doing nothing wrong dude,

just add a line so when u press retun key(for ex) u exit ur program

What would that be?

I tried system("PAUSE"); but it didn't work...

 

[Emily]

Where in your program did you put system("PAUSE");?

 

[ShoobieRat]

I'm picking C++ back up, after about a year or so, and already I've got a problem...

I type in:

I compile and run it using Bloodshed's Dev-C++ program, but it just flashes the DOS output for a split second, (so fast I can't see it) then DOS closes! What am I doing wrong?

Thanks!

Windows thang. Yer just running the file and it's pulling up the command prompt, running it, and then closing, because there's nothing else to do.

Do this:

Open the command prompt manually. Execute the file from the prompt.

That should show you "Hello World" on the following line, and then it'll just sit there and wait for your next action.

This is the behavior of how things are executed.

 

[office politics]

you could use a do while loop with getchar.

/* getchar example : typewriter */
#include <stdio.h>

int main ()
{
char c;
puts ("Enter text. Include a dot ('.') in a sentence to exit:");
do {
c=getchar();
putchar (c);
} while (c != '.');
return 0;
}

from http://www.cplusplus.com/ref/cstdio/getchar.html

 

[Cache]

Just stick with system("PAUSE");

The only reason it didn't work is because you have not included cstdlib

Pop the folloing at the top of your code and system will work:

#include <cstdlib>

 

[pcrobot]

OK, I type this:

// my first program in C++

#include <iostream.h>
#include <cstdlib>

int main ()
{
cout << "Hello World!";
return 0;
system("PAUSE");
}

And still it doesn't work...