Another Simple Problem

This is a discussion on Another Simple Problem within the C++ Programming forums, part of the General Programming Boards category; Here is my first addition program: Code: // Addition Program #include <iostream> using namespace std; int main() { int num1, ...

  1. #1
    For Narnia! Sentral's Avatar
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    Talking Another Simple Problem

    Here is my first addition program:
    Code:
    // Addition Program
    #include <iostream>
    using namespace std;
    int main()
    {
        int num1, num2, sum;
        cout << "Enter first number to be added:";
        cin >> num1;
        cout << "Enter second number to be added:";
        cin >> num2;
        cout << "Your sum is " << sum << endl;
        cin >> sum;
        sum = num1+num2;
        cin.get();
        return 0;
    }
    It compiles and runs, but when it gives me an answer it is always 2293672. Please help me. If you could, explain why it was giving me the same answer.
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  2. #2
    Registered User
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    36
    You have some basic errors

    here is the correct code:

    Code:
    // Addition Program revised
    #include <iostream>
    using namespace std;
    int main()
    {
        int num1, num2, sum;
        cout << "Enter first number to be added:";
        cin >> num1;
        cout << "Enter second number to be added:";
        cin >> num2;
    
        sum = num1+num2;
    
        cout << "Your sum is " << sum << endl;
        
        /* remove this line */ cin >> sum;  
        
        
        cin.get();
        return 0;
    }
    What happened earlier is that the line that does the math was after printing the output. You need to put that line before printing the output. You also used cin after the output. I have no idea why u did that.

  3. #3
    Registered User
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    Remember.. all code executes sequentialy.. not back and forward

  4. #4
    Registered User
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    Oct 2004
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    15
    To avoid problems like that, it is MUCH easier to declare what it is before you get into the code.

    Code:
    #include <iostream>
    using namespace std;
    int main
    {
    int num1,num2,sum
    
    sum = num1 + num2
    
    ...
    
    }
    that way you don't have to define something in the middle of your program...

    You do know that cin is asking for input from the user.

    Code:
    cin>>sum;
    is telling the user that THEY need to define what sum is.
    Last edited by Mornic_Programm; 05-30-2005 at 01:46 PM.

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