Question

Another quick C++ question

Answer 1

So double can be both integers and decimals right:
like 5 would be 5.0
what if i had a decimal 6.3333333333333
How many threes would it keep?

Answer 2

I know a bit of java, so maybe I can help you if you're lucky.

Answer 3

no this is just basic stuff.. Like that's my question technically how many decimals would "double" data type keep?

Answer 4

check out this page.. hope it helps
http://www.cplusplus.com/doc/tutorial/variables/

Answer 5

It would be a few, but not infinitely many. With floating point numbers you will often not get 'exactly' what you try to store there.

Answer 6

You will have a little bit of error. Which is why these sorts of things are not good for money.

Answer 7

oh okay. But for basic stuff this is good enough right? Say I just wanted to write a basic program for calculating area.

Answer 8

http://www.learncpp.com/
this is another great site to learn the language

Answer 9

tnx a lot guys! =)

Answer 10

It'll be fine for that.

Answer 11

Yep, fine for area.

Answer 12

The double can have ~6 digits. In other words if you write:
double a = 6.333333333333333 it will show you:
6.33333
double a = 33.333333333 it will show you:
33.3333