C++ cout iostream

#include <iostream> // for std::cout

//std::cout outputs Strings, numbers and variables to the commandline
int main()
{
  	int x = 1
    std::cout << "Hello" << " world!\n" << x; 
  	/* 	outputs: Hello world!
		1 						*/
////////////////////////////////////////////////////////////////////////////////////  	
  	// cout does not make a new line for each call
  	std::cout << "The answere: ";
  	std::cout << 42;
  	/* 	outputs: The answere: 42 */
///////////////////////////////////////////////////////////////////////////////////  
  	// std::endl and \n are both newlines
  	// std::endl adds a newline and makes sure the text gets displayed immediately
  	// "\n" adds a newline.(cout makes it display immediately by default)
   	std::cout << "step1" << std::endl
      		  << "step2" << '\n'
      		  << "end";
	/*	outputs: step1
    			 step2
                 end */
//////////////////////////////////////////////////////////////////////////////////
    return 0;
}

//The operator << gets overloaded by iostream to change its usage to what you see above

Source: learncpp.com

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