adding floats and storing them,

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Hi,
I'm a begginer with C++ I was wondering how I would add and store floats for example:

int main(int argc, char *argv[])
{
    float height;
    float length;
    float total;

    cout << "Please enter height: ";
    cin >> height;
    cout << "Please enter length: ";
    cin >> length;

// this is the bit I don't understand

    height*length = total; ?

// how do I store the input as a new float?

    
    system("PAUSE");
    return EXIT_SUCCESS;
}

Posted 9-Nov-10 4:51am

WurmInfinity

Updated 9-Nov-10 5:09am

LittleYellowBird

v3

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3 solutions

Solution 2

Try going the other way: destination = source;

total = height*length;

You have already created a new float top store the result in, called "total". You just need to do it the other way round!

Posted 9-Nov-10 5:18am

OriginalGriff

Solution 3

hi, you just have to invert the formula that you wrote:
this is the correct way:

total=height*length;

so what happens here is that, the height and length's value is multiplied and then is assigned to total or stored in the float variable total. What you wrote above will give you an error because it expects a variable at the left side to be assigned a value.
So you want to store the value in total so the correct way is the one i wrote above.

Posted 9-Nov-10 5:22am

Tarun.K.S

Updated 9-Nov-10 5:24am

v2

Comments

Tarun.K.S 9-Nov-10 11:26am

oops! someone had already answered it!! when i was writing the answer, there were no replies to the question!

Tarun.K.S 9-Nov-10 11:27am

only when i refreshed the page that i saw the answers!

WurmInfinity 9-Nov-10 11:48am

No worries. Its all helpfull :D thanks

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Gregory Gadow · Accepted Answer · 2010-11-09T05:17:00

Solution 1

C++, like almost(?) every programming language, requires that you declare your destination and then assign it a value, like this:

total = height * length;

Your textbook should have made this clear.

Posted 9-Nov-10 5:17am

Gregory Gadow

Comments

WurmInfinity 9-Nov-10 11:20am

Cheers, it works.