cout>>endl

[Vlatko]

Can someone explain what are

cout and endl

and what are they used for.

[parksie]

In C++, I/O is done using streams. cout is a variable of type ofstream that is bound to the standard file stdout. This means, basically, that any output sent to cout appears on the console:

cout << "Here is a string";

endl is actually a function, that adds a newline, then flushes the buffer. It's effectively:

cout << "String" << endl;

equals:

cout << "String" << "\n";
cout.flush();

There are also streams called cin (stdin), and cerr (stderr).

[V(ery) Basic]

#include <iostream.h>

int main()
{
cout << "Hello" << endl;
cout << "World!" << endl;
cout << "\n";
cout << "OR without endl";
cout << "\n";
cout << "Hello";
cout << "World!";
return 0;
}


endl makes the next thing added on a new line
/n has the same effect except it has to be part of a string
cout displays text in a console window. It has to be followed by << and then the string

int decared_variable
cin >> declared_variable

waits for the user to enter a value (in this case a long integer)

I hope this helps,

Me.