Class 12 Data File Handling In C++ Revision Notes

Computer Science
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Read and download the Class 12 Data File Handling In C++ Revision Notes. Designed for 2025-26, this advanced study material provides Class 12 Computer Science students with detailed revision notes, sure-shot questions, and detailed answers. Prepared by expert teachers and they follow the latest CBSE, NCERT, and KVS guidelines to ensure you get best scores.

Advanced Study Material for Class 12 Computer Science Data File Handling In C++

To achieve a high score in Computer Science, students must go beyond standard textbooks. This Class 12 Data File Handling In C++ study material includes conceptual summaries and solved practice questions to improve you understanding.

Class 12 Computer Science Data File Handling In C++ Notes and Questions

File: - The information / data stored under a specific name on a storage device, is called a file.
Stream: - It refers to a sequence of bytes.
Text file: - It is a file that stores information in ASCII characters. In text files, each line of text is terminated with a special character known as EOL (End of Line) character or delimiter character.
When this EOL character is read or written, certain internal translations take place.
Binary file:- It is a file that contains information in the same format as it is held in memory. In binary files, no delimiters are used for a line and no translations occur here.
Classes used for different file related operation
ofstream: Object of ofstream class used to write data to the files.
ifstream: Object of ifstream class used to read from files
fstream: Object of fstream class used to both read and write from/to files.
 
Opening a file

Opening file using constructor
ofstream outFile("sample.txt");      //output only
ifstream inFile(“sample.txt”);        //input only
Opening File Using open ()
StreamObject.open(“filename”, [mode]);
ofstream outFile;
outFile.open("sample.txt");
ifstream inFile;
inFile.open("sample.txt");
 
Class 12 Data File Handling In C++ Revision NotesAll these flags can be combined using the bitwise operator OR (|). For example, if we want to open the file example.dat in binary mode to add data we could do it by the following call to member
function open():
fstream file;
file.open ("example.dat", ios::out | ios::app | ios::binary);
Closing File
outFile.close();
inFile.close();
 
Input and output operation

put() and get() function
the function put() writes a single character to the associated stream. Similarly, the function get()
reads a single character form the associated stream.
example :
 
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Inheritance
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Class 12 OOP Classes And Objects Revision Notes
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Important Practice Resources for Class 12 Computer Science

CBSE Class 12 Computer Science Data File Handling In C++ Study Material

Students can find all the important study material for Data File Handling In C++ on this page. This collection includes detailed notes, Mind Maps for quick revision, and Sure Shot Questions that will come in your CBSE exams. This material has been strictly prepared on the latest 2026 syllabus for Class 12 Computer Science. Our expert teachers always suggest you to use these tools daily to make your learning easier and faster.

Data File Handling In C++ Expert Notes & Solved Exam Questions

Our teachers have used the latest official NCERT book for Class 12 Computer Science to prepare these study material. We have included previous year examination questions and also step-by-step solutions to help you understand the marking scheme too. After reading the above chapter notes and solved questions also solve the practice problems and then compare your work with our NCERT solutions for Class 12 Computer Science.

Complete Revision for Computer Science

To get the best marks in your Class 12 exams you should use Computer Science Sample Papers along with these chapter notes. Daily practicing with our online MCQ Tests for Data File Handling In C++ will also help you improve your speed and accuracy. All the study material provided on studiestoday.com is free and updated regularly to help Class 12 students stay ahead in their studies and feel confident during their school tests.

What is included in the advanced study material for Class 12 Computer Science Chapter Data File Handling In C++?

Our advanced study package for Chapter Data File Handling In C++ includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 12 students learn as per syllabus for 2026 exams.

How do Mind Maps for Computer Science Chapter Data File Handling In C++ help in revision?

The Mind Maps provided for Chapter Data File Handling In C++ act as visual anchors which will help faster recall during high-pressure exams.

Are these Computer Science resources suitable for both classroom teaching and self-study?

Yes, teachers use our Class 12 Computer Science resources for lesson planning as they are in simple language and have lot of solved examples.

Is this advanced study material for Chapter Data File Handling In C++ free to download in PDF?

Yes, You can download the complete, mobile-friendly PDF of the Computer Science Chapter Data File Handling In C++ advanced resources for free.

Does this material cover rationalized content for the 2025-26 CBSE session?

Yes, our subject matter experts have updated the Chapter Data File Handling In C++ material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.