File handling in C++ File is collection of data or set of characters or may be text or a program. Basically there are two types of files in c++: sequential files and random access files. The sequential files are very easy to create than random access files. In sequential files the data or text will be stored or read back sequentially. In random access files, data can be accessed and processed randomly. The header file, fstream.h supports the highly sophisticated input/output stream processing techniques and to implement input/output for the advanced language features such as classes, derived classes, function overloading, virtual functions and multiple inheritance. The following methods are used in C++ to read and write files: Ifstream – to read a stream of object from a specified file. operator(2 greater thn symbols) Extract formatted input (public member function ) gcount Get character count (public member function ) get Get characters (public member function ) getline Get line (public member function ) ignore Extract and discard characters (public member function ) peek Peek next character (public member function ) read Read block of data (public member function ) readsome Read data available in buffer (public member function ) putback Put character back (public member function ) unget Unget character (public member function ) tellg Get position in input sequence (public member function ) seekg Set position in input sequence (public member function ) sync Synchronize input buffer (public member function )

Ofstream- to write a stream of object on a specified file. operator (2 less thn symbols) Insert formatted output (public member function ) put Put character (public member function ) write Write block of data (public member function ) tellp Get position in output sequence (public member function ) seekp Set position in output sequence (public member function ) flush Flush output stream buffer (public member function )

============================================= Fstream – both to read and write a stream of objects on a specified file.

Opening a file The header file ifstream.h is a derived class from the base class of istream and its used to read a stream of objects from a file.

Bandicam software is used to capture screen

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