[aaron1178]

Hey all,
I am new as in just stated just then and im following a tutorial,
im using c++ builder and im making a console app.
I have this code in it:

#include <iostream>
using namespace std;
int main ()
{
cout << "Hello World";
return 0;
}

i then click run and i compiles it and then opens a console for about 5 seconds but then goes away,
i am new and have no exp with it,
Could you please tell me whats wrong
Thanks Aaron1178

[sarmanu]

Read reply 2 from this topic.

[jjl]

when main returns 0; it returns control back to the operating system and closes your program. int main() is the entry point of your program there for the end of your program is at the end of main. You need to pause the execution before your program returns control back to the OS, return 0; to do this place this before return 0;

cin.ignore(); //ignore input buffer, the buffer can sometimes have garbage characters in it
//you can put your own message if you would like
cout<<"Please press enter to quit...."<<endl;
cin.get(); //get a character from the user

[aaron1178]

Ok thanks for your help but im looking to do someting like CMD.exe where it never ends with userinput only when they type /quit or click the X simbol,

thanks aaron1178

[sarmanu]

Then create a loop which loops as long as "/quit" string is not inputted.

[aaron1178]

Ok thanks, i do get your point but
it just says welcome to I-Studio - Client

//This is my first C++ Program
//---------Includes---------//
#include <iostream>
#include <string>
//----------Using----------//
using namespace std;
//---------Defines---------//
//----------Main-----------//
int main ()
{
while(cin != "/quit")
{
cout << "Welcome to I-studio - Client\n";
}
}

Now it just wont stop saying it lol. so what do i do here

Anyone

Thanks aaron1178

This post has been edited by aaron1178: 05 June 2010 - 06:18 AM

[aaron1178]

Please Delete, internet done this

This post has been edited by aaron1178: 05 June 2010 - 02:38 AM

[runnerrob]

Would it be of any use to insert this line

system ("pause");

before you end you're program with

return 0;

The program will ask to press any key to continue.

[PsychoCoder]

runnerrob while that will work it is a Windows specific command, and using it will remove the portability of C++. So if you were to use this in an application it would only be able to run on a Windows OS, and one of the major perks of C++ (and C) is that it's portable and can run on any OS.

[C++ Programmer]

Why would you use a Windows specific command that disables the portability of C++ if there is a faster and better substitute already built into C++? I just don't get it

[jjl]

take a look

//This is my first C++ Program
//---------Includes---------//
#include <iostream>
//----------Using----------//
using namespace std;
//---------Defines---------//
//----------Main-----------//

int main ()
{
	//variable that holds one character
	char command;

	// this loop will always execute atleast once because it checks the conditions at the bottom
  do{
		cout << "Welcome to I-studio - Client\n";
		cout<<"Enter 'q' to quit : ";
	        cin>>command;
   }while(command != 'q'); //if this is true then loop again
   // do 'this' while command DOES NOT (!=) equal 'q'

  //pause window
  cin.ignore();
  cin.get();

  //end
  return 0;
}

This post has been edited by ImaSexy: 05 June 2010 - 11:51 AM

[sarmanu]

You may want to check this tutorial about loops too.

[C++ Programmer]

@ImaSexy,

That's how I usually do it too. Simple, fast and easy

[undertaker17]

Jus do a system("PAUSE") b4 return 0.

system("PAUSE");
return 0;

[C++ Programmer]

We have already replied in the posts above that using system functions is a bad way to hold the command window. Using that will make C++ not portable, which is one of it's up sides.

Use

cin.ignore();
cin.get();

instead.

This post has been edited by C++ Programmer: 05 June 2010 - 11:57 PM