Could someone help with this C++ problem?

Question

Just doing an exercise. This is the code:

===

#include <iostream.h>

int main()

{

int x = 5;

int y = 7;

cout "\n";

cout << x + y << " " << x * y;

cout "\n";

return 0;

}

===

I keep getting the following error when compiling it using the following command in Unix:

g++ guess.cpp

or

c++ guess.cpp

Error:

guess.cpp: In function `int main()':

guess.cpp:6: parse error before string constant

====

Any help would be appreciated! 10 Points for the best answer! ;-)

Answer 1

some systems require you to add

int main();

to show that it is the first function to be used.

also, before you write &#039;cout&#039; you must have std:: so your code should look like this

#include &lt;iostream.h&gt;

int main();

int main()

{

int x = 5;

int y = 7;

std::cout &lt;&lt; &quot;\n&quot;;

std::cout &lt;&lt; x + y &lt;&lt; &quot; &quot; &lt;&lt; x * y;

std::cout &lt;&lt; &quot;\n&quot;;

return 0;

}

i know the std:: thing can get annoying so you can also do this:

#include &lt;iostream.h&gt;

int main();

int main()

{

using namespace std;

int x = 5;

int y = 7;

cout &lt;&lt; &quot;\n&quot;;

cout &lt;&lt; x + y &lt;&lt; &quot; &quot; &lt;&lt; x * y;

cout &lt;&lt; &quot;\n&quot;;

return 0;

}

that way you never have to add std:: infront of your cout or cin commands

Answer 2

I woule help if I knew what the heck that even means. Sorry

Answer 3

There should be an &lt;&lt; before those &quot;\n&quot;s on lines 6 and 8.

Edit: about the std namespace:

You&#039;re including &lt;iostream.h&gt;, which is a backwards compatibility header that automatically places everything in the global scope. It&#039;s a bad idea to use &lt;iostream.h&gt;, though, since it&#039;s not guaranteed to exist on all compilers. Better to use &lt;iostream&gt; and then use &quot;using std::cout;&quot; or similar things.

Answer 4

Your &#039;cout&#039; statements require &#039;&lt;&lt;&#039;. e.g.

#include &lt;iostream.h&gt;

int main()

{

int x = 5;

int y = 7;

cout &lt;&lt; &quot;\n&quot;;

cout &lt;&lt; x + y &lt;&lt; &quot; &quot; &lt;&lt; x * y;

cout &lt;&lt; &quot;\n&quot;;

return 0;

}

Might also be worth adding:

using namespace std;

after you include iostream.h.