File Handling through C++ Classes - GeeksforGeeks

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• The sequence of bytes given as input to the executing program and the sequence of bytes that comes as output from the executing program are called stream

• Modes :

• File handling is used to store data permanently in a computer. Using file handling we can store our data in secondary memory (Hard disk).

• In other words, streams are nothing but the flow of data in a sequence.

• These include ifstream, ofstream and fstream classes.

• These classes are derived from fstream and from the corresponding iostream class.

• istream:-

• ios:-

• ostream

• file in any program that uses files.

• ifstream:-

• ofstream

• fstream

• base class

• This class contains the necessary facilities that are used by all the other derived classes for input and output operations.

• input stream.

• extraction operator(>>) is overloaded in this class to handle input streams from files to the program execution.

• streambuf

• fstreambase