Input and Output Using Streams

• Input is an a sequence of characters coming into the program from an input device; the keyboard or a file
• Output is also a sequence of characters but going from the program to an output device; the display terminal or a file
• There are two declarations in iostream.h:

	istream cin;
	ostream cout;

• These are special streams for the standard devices; keyboard (cin) and display (cout)
• << is the insertion operator for cout; this operator can occur multiple times in one statement
• >> is the extraction operator for cin; also can occur multiple times in a single statement

	int a;
	cin >> a;

This causes the next input from the stream to be stored into the integer a