C++ tutorial 01 - cout

In C++, the cout object belongs to the ostream class. The iostream header file defines it. It's used to send the output to a standard output device for display. Using the insertion operator (<<), the data to be displayed on the screen is inserted into the standard output stream (cout).

Without new line -:

Ex 01:

//Header files

#include <iostream> 

//Declare namespace
using namespace std;

//main function
int main() {

  //output to the console window
  cout << "Hello World!";
  cout << "This is iedumax C++ tutorial time.";    

  //end of the program
  return 0;
}

With new line -:

The lines that are supposed to be output in multiple lines occur in a continuous line. The programmer needs to provide additional data to the compiler about the new lines. There are two ways to provide the line information to the compiler.

• Use endl manipulator at the end of the statement.
•  Place \n at the beginning, at the middle, or at the end of the output text.

 

Ex 02:

#include <iostream>
using namespace std;

int main() {
  cout << "Hello World!" << endl;
  cout << "This is iedumax C++ tutorial time.";
  return 0;
}

#include <iostream>
using namespace std;

int main() {
  cout << "Hello World! \n\n";
  cout << "This is iedumax C++ tutorial time.";
  return 0;
}

#include <iostream>
using namespace std;

int main() {
  cout << "Hello World!";
  cout << "\nThis is iedumax C++ tutorial time.\n\nThank you.";
  return 0;
}