Help with Code

#include <iostream.h> // cin and cout are defined in this header

void main()
{
double Input=0; // This will hold keyboard input
double Total=0; // This will hold the total

// Type a welcome message
cout<<"Welcome to the C++ Game Tutorials Adding Machine"
<<endl;

{
cout<<Enter a number please. or else
}

//Loop till the user enters -666
while(Input!=-666)
{
cout<<"Enter a value (-666 to exit): "; // Prompt user
cin>>Input; // Take input
Total = Total + Input; // Add total
cout<<endl // Print total
<<"Total = "<<Total<<endl;
}

cout<<"Good Bye!"<<endl<<endl;
}


1. Well I need a way to say that if 'Input' is not a number, it displays "This is not a number."

2. Well when I compile for some programs, the screen usually just flashes and exits. is there a way to kind of pause the program for the viewer to clearly see the contents of the program.

I can help with the second thing. However, for the second thing, you can use cin.get(), getch(), or system("pause")

Brendan

thanx mr. porter

Hi U,

take an input form user and check if it is digit. Some thing like this. Hope this helps.

Code:

---


  #include <iostream.h> // cin and cout are defined in this header
  #include<ctype.h>

void main()
{
double Input=0; // This will hold keyboard input
double Total=0; // This will hold the total

// Type a welcome message
cout<<"Welcome to the C++ Game Tutorials Adding Machine"
<<endl;

//Loop till the user enters -666
while(Input !=-666)
{
cout<<"Enter a value (-666 to exit): "; // Prompt user
cin>>Input; // Take input
if(isdigit(Input))//isxdigit() can check if it is hex and isdigit() will check for decimal and digit
{
    Total = Total + Input; // Add total
    cout<<endl<<"Total = "<<Total<<endl;  // Print total
  cout<<"Please Enter Something To Exit"<<endl;
    cin.get()
}
else
{
  cout<<"This is not a number." <<endl;
}
}

cout<<"Good Bye!"<<endl<<endl;
}

---

thanx all