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\image addressbook-tutorial-part6-screenshot.png
- Although browsing and searching for contacts are useful features, our address
- book is not really fully ready for use until we can saving existing contacts
- and load them again at a later time.
- Qt provides a number of classes for \l{Input/Output and Networking}{input and output},
- but we have chosen to use two which are simple to use in combination: QFile and
- QDataStream.
-
- A QFile object represents a file on disk that can be read from and written to.
- QFile is a subclass of the more general QIODevice class which represents many
- different kinds of devices.
-
- A QDataStream object is used to serialize binary data so that it can be stored
- in a QIODevice and retrieved again later. Reading from a QIODevice and writing
- to it is as simple as opening the stream - with the respective device as a
- parameter - and reading from or writing to it.
+ Although browsing and searching for contacts are useful features, our
+ address book is not ready for use until we can save existing contacts and
+ load them again at a later time.
+
+ Qt provides a number of classes for \l{Input/Output and Networking}
+ {input and output}, but we have chosen to use two which are simple to use
+ in combination: QFile and QDataStream.
+
+ A QFile object represents a file on disk that can be read from and written
+ to. QFile is a subclass of the more general QIODevice class which
+ represents many different kinds of devices.
+
+ A QDataStream object is used to serialize binary data so that it can be
+ stored in a QIODevice and retrieved again later. Reading from a QIODevice
+ and writing to it is as simple as opening the stream - with the respective
+ device as a parameter - and reading from or writing to it.
+
\section1 Defining the AddressBook Class