DAY 17
WEEK 3
Working with Streams
Until now, you’ve been using coutto write to the screen and cinto read from
the keyboard, without a full understanding of how they work. Today, you will
learn all about both of these.
Today, you will also learn- What streams are and how they are used
- How to manage input and output using streams
- How to write to and read from files using streams
Overview of Streams ..........................................................................................
C++ does not define how data is written to the screen or to a file, nor how data
is read into a program. These are clearly essential parts of working with C++,
however, and the standard C++ library includes the iostreamlibrary, which
facilitates input and output (I/O).
The advantage of having the input and output kept apart from the language
and handled in libraries is that it is easier to make the language “platform-
independent.” That is, you can write C++ programs on a PC and then recompile