Sintax Program C++

// my first program in C++

This is a comment line. All lines beginning with two slash signs (//) are considered comments and do not have any effect on the behavior of the program. The programmer can use them to include short explanations or observations within the source code itself. In this case, the line is a brief description of what our program is. 

Sintax Program C++

// my first program in C++
#include <iostream>
using namespace std;
int main ()
{
  cout << "Hello World!";
  return 0;
}

Output Program :


Hello World!