Standard Output (cout) & Input (cin) in C++

Standard Output (cout)

• The cout and insertion (<<) operator can print a message on the screen.

Example:
cout<< "Welcome to TutorialRide!!!";


• To print the variables, there is no need to used double quotes ( “” ).

Example:
int a=10;
count << a;


• The insertion operator (<<) can be used multiple times in a single statement.

Example:
cout<< "Welcome" << "to" << "TutorialRide";


• It is possible to combine variables and text.

Example:
int a = 10;
cout<< "Print number"<<a;

Standard Input (cin)

• The cin and extraction (>>) operator reads input from the keyboard.



Example

int num;
cout<< "Enter number:"
cin>>num;
cout<<num;



• The cin operator returns the variable type.

Manipulators

• Manipulators are used to manipulate the data by the programmer's choice of display.
• It is used to specify certain formats of the output to be displayed when using the cout statement.
• It performs certain special operations such as moving the cursor to new line, fixing the width of a data value etc.

Storage Classes

• Storage class is a type specifier that governs the lifetime, linkage and memory location of objects.
• It defines the scope and lifetime of variables or functions within a C++ program.