Page 26 - Modular_V2.0_C++_Flikpbook
P. 26
3 INPUT AND OUTPUT
IN C++
Your Aim
to learn about:
Output Input
Escape Sequence Characters Comments
Every program requires some input to work and displays some output after processing the input.
C++ also allows you to give input to a program and get the output from the program. Every
input/output in C++ is considered a stream of characters. C++ provides two objects to take the
input and to display the output, which are cin and cout. Let us discuss these in detail.
OUTPUT
The cout object is used to display output on a computer screen (monitor). It is part of the
ostream class and is also known as the Standard Output Stream. The cout object works with
the stream insertion operator (<<) to show messages or values.
For example:
cout<<"Output on the screen";
The above statement displays the message Output on the screen on the monitor. The stream
insertion operator can be used multiple times in a single statement to combine and display
multiple outputs. For example:
cout<<"Hello"<<" from "<<" C++";
You can also print the variable value using the cout object. For example:
cout<<x;
cout<<120;
Chaining insertions is particularly useful when combining literals and variables in a single
statement. For example:
cout<<"I am"<< name<<". I am"<<age<<" years old.";
In the above statement, the values of the variables name and age are printed along with text,
producing an output like:
I am Chirag. I am 18 years old.
24
Touchpad MODULAR (Ver. 2.0)

