issue with integer and double values

[missiepooh45]

Write your question here.

I am confused about DOUBLE does that mean that number1 should double based on I enter?

using namespace std;
int main ()

}

double a;
int b;
int c = a+b;

cout <<"enter number1:";
cin >> a;

cout <<"enter number2:";
cin>> b;

c= a+b;
cout<<c;




    return 0;
}







  Put the code you need help with here.

[H00G0]

>I am confused about DOUBLE does that mean that number1 should double based on I enter?

No, double is a type, just like int, float, etc. see documentation here: http://www.cplusplus.com/doc/oldtutorial/variables/

To make it short, the difference between an int and a double is that the int is an number that is round, that is without a comma. A double can be round but can also have multiple digits after the comma.

[jonnin]

double is one of the 'dumb keywords' left over from days of yore back when we programmed on rocks with chisels. It is double the size of a float, hence the name. Float's name isn't really awesome either (it stands for floating point which is a reference to the mechanics of how decimal numbers are handled); its right on up there with word or the ever popular long long. You get used to the bad type names, but they are strange when you first see them :) Doubles are for decimal numbers (like pi or e or the sqrt of 2) and integers are for (1,2,3,4...) 'whole' numbers.

Hoogo, half the world things pi is 3,14 and the other half thinks its 3.14. :) Commas depend on where you live.

[missiepooh45]

Thank you for your prompt reply

[H00G0]

@jonnin haha I know right, in my country we use commas, however since I learned english and use it most of the time, I find commas really handy to separate big numbers such as 1,200 -- which if you went to school where I live, would equate to 1.2. But the 'point' I wanted to get across (no pun intended) was what you said. The word decimal should have come to mind but didn't, it explains it much better I guess :)