Please Help. Could someone help me correct my simple C++ program?

I'm trying to make a simple tempreture conversion program. The program is to convert from centigrade to fahrenheit. I can't get the program to compile. Please help. The program is below. What corrections should I do to make the program work?




















// This is a program used convert values from degrees centigrade to degrees fahrenheit.


#include %26lt;iostream%26gt;


using namespace std;





int main ()


{


double centigrade;


double fahrenheit;





cout %26lt;%26lt; "This program is used to convert degrees centigrade into degrees fahrenheit" %26lt;%26lt; endl;


cout %26lt;%26lt; "What is the value for centigrade? ";


cin %26lt;%26lt; centigrade;


fahrenheit = 9.0 / 5.0 * centigrade + 32;


cout %26lt;%26lt; "The degrees fahrenheit is " %26lt;%26lt; fahrenheit %26lt;%26lt; endl;


return 0;


}

Please Help. Could someone help me correct my simple C++ program?
There are two simple issues. The "%26lt;%26lt;" in cin should be "%26gt;%26gt;" and then also the order of operations needs to be corrected on calculating the fahrenheit. And it looks like you have the wrong calculation. It should be:





fahrenheit = ((9*centigrade)/5) + 32
Reply:try this one with some addition features such as; subtract, divide, multiply and convert














#include %26lt;iostream.h%26gt;


int main(void)








{


int n,a;


double d,e;


cout%26lt;%26lt;"\n1. Multiply\n";


cout%26lt;%26lt;"2. Divide\n";


cout%26lt;%26lt;"3. Add\n";


cout%26lt;%26lt;"4. Subtract\n";


cout%26lt;%26lt;"5. Celcius to Fahrenheit\n";


cout%26lt;%26lt;"6. Fahrenheit to Celcius\n";


cout%26lt;%26lt;"choose a number: ";


cin %26gt;%26gt; a;


switch (a)








{


case 1:


cout%26lt;%26lt;"\nenter your first number: ";


cin %26gt;%26gt; d;


cout%26lt;%26lt;"enter your second number: ";


cin %26gt;%26gt; e;


cout %26lt;%26lt; "your answer is: " %26lt;%26lt;(d*e) %26lt;%26lt; "\n";


break;


case 2:


cout%26lt;%26lt;"\nenter your first number: ";


cin %26gt;%26gt; d;


cout%26lt;%26lt;"enter your second number: ";


cin %26gt;%26gt; e;


cout %26lt;%26lt; "your answer is: " %26lt;%26lt;(d/e) %26lt;%26lt; "\n";


break;


case 3:


cout%26lt;%26lt;"\nenter your first number: ";


cin %26gt;%26gt; d;


cout%26lt;%26lt;"enter your second number: ";


cin %26gt;%26gt; e;


cout %26lt;%26lt; "your answer is: " %26lt;%26lt;(d+e) %26lt;%26lt; "\n";


break;


case 4:


cout%26lt;%26lt;"\nenter your first number: ";


cin %26gt;%26gt; d;


cout%26lt;%26lt;"enter your second number: ";


cin %26gt;%26gt; e;


cout %26lt;%26lt; "your answer is: " %26lt;%26lt;(d-e) %26lt;%26lt; "\n";


break;


case 5:


cout%26lt;%26lt;"\nenter celcius: ";


cin %26gt;%26gt; d;


cout %26lt;%26lt; "your answer is: " %26lt;%26lt;(9.0*(d/5.0) + 32) %26lt;%26lt; "\n";


break;


case 6:


cout%26lt;%26lt;"\nenter Fahrenheit: ";


cin %26gt;%26gt; d;


cout %26lt;%26lt; "your answer is: " %26lt;%26lt;(5.0/9.0*(d-32)) %26lt;%26lt; "\n";


break;


default:


cout%26lt;%26lt;"please choose a number from 1-6:\n";


return main();


}





cout %26lt;%26lt; "\n"%26lt;%26lt;"1. restart\n2. exit\n";


cin %26gt;%26gt; n;


switch(n)








{


case 1:


return main();


case 2:


return 0;


}





return 0;


}
Reply:The problem is that you have the wrong operator for cin. It should be "cin %26gt;%26gt; centigrade":





int main () {





double centigrade;


double fahrenheit;





cout %26lt;%26lt; "TEST" %26lt;%26lt; endl;


cout %26lt;%26lt; "This program is used to convert degrees centigrade into degrees fahrenheit" %26lt;%26lt; endl;


cout %26lt;%26lt; "What is the value for centigrade? ";


cin %26gt;%26gt; centigrade;


fahrenheit = 9.0 / 5.0 * centigrade + 32;


cout %26lt;%26lt; "The degrees fahrenheit is " %26lt;%26lt; fahrenheit %26lt;%26lt; endl;


return 0;





}





This is because cin is an input stream and cout is an output stream. The %26gt;%26gt; operator is used to read data; the %26lt;%26lt; operator is used to write data. For cin, you are reading input, so you need to use the %26gt;%26gt; operator. The %26lt;%26lt; operator does not apply to an input stream, because it can only read.
Reply:Your cin needs a %26gt;%26gt; operator instead of a %26lt;%26lt; operator.





Also posting your compiler errors really help in fixing this.

covent garden