Programming Forums > Application Development > C++

C.B. · Jul 9th, 2007, 11:20 PM

It compiled, and this seems to be the kind of program I am trying to create. How do I get it to stop asking for a number so It begin the random selection? It says to Enter a Number or 0 to exit. But when I enter a number as 0 it just saves it on the list.

King · Jul 9th, 2007, 11:47 PM

In the GetNumbers function change the if statement to:

(Toggle Plain Text)

if ( num == 0 )
     break;

The code before only had a single '=' where a double '=' was needed (Ben probably didn't even compile it so was an easy thing to miss). That will fix the error. From here you should add some error handling for practice.

C.B. · Jul 10th, 2007, 2:50 AM

Quote:

Originally Posted by King

In the GetNumbers function change the if statement to:

(Toggle Plain Text)

if ( num == 0 )
     break;

The code before only had a single '=' where a double '=' was needed (Ben probably didn't even compile it so was an easy thing to miss). That will fix the error. From here you should add some error handling for practice.

Ok that fixed that. On the command "What numbers from the list do you want to see?, It asks me a question like 1-5,1-6. I don't get that part? And whatever answer i Enter the program exits.

Ben.Dougall · Jul 10th, 2007, 7:52 AM

put either std::cin.get() or system( "pause" ) after the cout for the number to be displayed.

(Toggle Plain Text)

std::cout << numbers[choice - 1] << std::endl;
system ("pause");

Like i said, i did this at work where I'm not even suppose to be coding, so didn't test it.

C.B. · Jul 10th, 2007, 8:14 AM

Quote:

Originally Posted by Ben.Dougall

put either std::cin.get() or system( "pause" ) after the cout for the number to be displayed.

(Toggle Plain Text)

std::cout << numbers[choice - 1] << std::endl;
system ("pause");

Like i said, i did this at work where I'm not even suppose to be coding, so didn't test it.

Awsome.

(Toggle Plain Text)

#include <iostream> 
#include <ctime> 
#include <cstdlib>

using namespace std;

int main() 
{ 
    srand((unsigned)time(0)); 
    int random_integer; 
    int lowest=111, highest=999; 
    int range=(highest-lowest)+1; 
    for(int index=0; index<20; index++){ 
        random_integer = lowest+int(range*rand()/(RAND_MAX + 1.0)); 
        cout << random_integer << endl;
        cin.get(); 
    }

I got this to generate 3 digit numbers. I'll mess around with both codes and see what else I can come up with. Once again thanks to everyone that has helped me.

How can I get the number selector one to select a random number?

Ben.Dougall · Jul 10th, 2007, 10:43 AM

This thread may help you with the random numbers.

For the picking a random number, just do what i dod for the above program, store the numbers in a array/vector ( vector is better ). Then pick the nth number from the vector.

Jul 9th, 2007, 11:47 PM	#12
King Professional Programmer Join Date: Jan 2006 Location: Ontario, Canada Posts: 377 Rep Power: 0	In the GetNumbers function change the if statement to: (Toggle Plain Text) if ( num == 0 ) break; if ( num == 0 ) break; The code before only had a single '=' where a double '=' was needed (Ben probably didn't even compile it so was an easy thing to miss). That will fix the error. From here you should add some error handling for practice. __________________ I am Addicted to Linux!

Jul 10th, 2007, 7:52 AM	#14
Ben.Dougall Programmer Join Date: Jul 2007 Location: London, Ontario, Canada Posts: 34 Rep Power: 0	put either std::cin.get() or system( "pause" ) after the cout for the number to be displayed. (Toggle Plain Text) std::cout << numbers[choice - 1] << std::endl; system ("pause"); std::cout << numbers[choice - 1] << std::endl; system ("pause"); Like i said, i did this at work where I'm not even suppose to be coding, so didn't test it.

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Jul 9th, 2007, 11:20 PM	#11
C.B. Newbie Join Date: Apr 2007 Posts: 9 Rep Power: 0	It compiled, and this seems to be the kind of program I am trying to create. How do I get it to stop asking for a number so It begin the random selection? It says to Enter a Number or 0 to exit. But when I enter a number as 0 it just saves it on the list.

Jul 10th, 2007, 10:43 AM	#16
Ben.Dougall Programmer Join Date: Jul 2007 Location: London, Ontario, Canada Posts: 34 Rep Power: 0	This thread may help you with the random numbers. For the picking a random number, just do what i dod for the above program, store the numbers in a array/vector ( vector is better ). Then pick the nth number from the vector.

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