Comments are explanatory statements that you can include in C++ code to explain what the code is doing. The compiler ignores everything that appears in the comment,so none of that information shows in the result.
Single-Line Comments:
Comments that require lines begin with //. You can place them on the single line
For example:
#include<iostream.h>
using namespace std;
int main()
{
//prints "Hello world"
cout<<"Hello world";
return 0;
}
Output:
Hello world
Multi-Line Comment:
Comments that require lines begin with /* and end with */.
You can place them on the same line or insert one or more lines between them.
For example:
#include<iostream.h>
using namespace std;
int main()
{
/*This is a comment.
prints "Hello world" */
cout<<"Hello world";
return 0;
}
Output:
Hello world
Note:-
Comments can be written anywhere, and can be repeated any number of times throughout the code.
