My C++ problems
I recently started to learn code and i decided to use C++, i am using dev c++ also. I did the 'hello world' code and it worked fine but i watched a tutorial on how to make a code that did averages and this is exactly the same as what he typed in on the tutorial i am about 99% sure. his worked, he was using dev c++ aswell and i had about 5 errors, can you tell me what i did wrong??
#include<iostream>
int main(void)
{
double dnumber1 = 0.0;
double dnumber2 = 0.0;
double dnumber3 = 0.0;
cout << "please enter 3 numbers " << end1;
cin >> dnumber1;
cin >> dnumber2;
cin >> dnumber3;
daverage = (dnumber1 + dnumber2 + dnumber3) / 3;
cout << "the average of the numbers is: " << end1 << end1;
system("pause");
return 0;
}
#include<iostream>
int main(void)
{
double dnumber1 = 0.0;
double dnumber2 = 0.0;
double dnumber3 = 0.0;
cout << "please enter 3 numbers " << end1;
cin >> dnumber1;
cin >> dnumber2;
cin >> dnumber3;
daverage = (dnumber1 + dnumber2 + dnumber3) / 3;
cout << "the average of the numbers is: " << end1 << end1;
system("pause");
return 0;
}
i noticed that you have
use an L instead of 1
<<end1<<end1 when it should be <<endl<<endluse an L instead of 1
Also, if you include iostream you must
either use
or type
Oh, and
And my guess is that you wanted to write
instead of
either use
std::cout, std::cin and std::endlor type
using namespace std; before your main function.Oh, and
daverage is not declared!And my guess is that you wanted to write
cout << "the average of the numbers is: " << daverage << endl;instead of
cout << "the average of the numbers is: " << endl << endl;
Last edited on
| figjam wrote: |
|---|
| well I just saw it on youtube and he put << endl << endl I am pretty sure. |
That's exactly what wasing pointed out. Incidentally, you don't need to write
int main(void) because int main() will suffice.
Oh... and... please do not use system().
The first cin.ignore() clears out the newline that cin leaves in the stream. The second one pauses the program, as there is nothing to read.
-Albatross
cin.ignore(); cin.ignore();The first cin.ignore() clears out the newline that cin leaves in the stream. The second one pauses the program, as there is nothing to read.
-Albatross
An even better questions is "who watches a programming tutorial in video format?"
What happened to the old-days of books and text?!
What happened to the old-days of books and text?!
Paper is soon going to be obsolete, and books with paper are going to be obsolete even sooner.
That said, figjam, we recommend the tutorial on this very website. You'll have to do some reading, but it's worth it.
http://cplusplus.com/doc/tutorial/
-Albatross
That said, figjam, we recommend the tutorial on this very website. You'll have to do some reading, but it's worth it.
http://cplusplus.com/doc/tutorial/
-Albatross
closed account (jwC5fSEw)
| Paper is soon going to be obsolete, and books with paper are going to be obsolete even sooner. |
How do you figure that?
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