File handling in C++ Assignment
File handling in C++ assignment contains programming question that most of the time appear in CBSE board Exams.
These assignments are basically divided into two parts . Text file handling and Binary file handling.
Text File Handling – Text file can be read and write in three ways –
- Single char ( read and write )
- Single Word ( read and write )
- Single line ( read and write )
Binary file operations are basically performed using structure and classes. You are required to read all these questions carefully before attempting any one of them.
Text File handling
| Q1. | Write a program in C++ to create a text file in C++. |
| Q2 | Write a program in C++ to create a text file. Read the contents of this text file and display them on the screen. |
| Q3 | Write a program in C++ to read text file and find out total no of characters available in this file. |
| Q4 | Write a program in C++ to read a text file and find out total no of vowels, consonants, digits , punctuation marks available in this text file. |
| Q5 | Write a program in C++ to find out total no of words available in this text file. |
| Q6 | Write a program in C++ to find out total no of lines available in this text file. |
| Q7 | Write a program in C++ to copy the contents of this file in another text file. |
| Q8 | Write a program in C++ to print the contents of this file on printer. |
| Q9 | Write a program in C++ to read a text file and print only those words which starts with vowels. |
| Q10. | Define a structure of student having fields admno, name, address. Write a program in C++ to add some records in a file called “student.dat”. |
| Q11. | Define a structure of student having fields admno, name, address. Write a program in C++ to read records from the file called “student.dat”. and display the same records on the screen |
| Q12 | Define a structure of student having fields admno, name, address. Write a program in C++ to modify a record from the file called “student.dat”. |
| Q13. | Define a structure of student having fields admno, name, address. Write a program in C++ to delete a record from the file called “student.dat”. |
| Q14. | Class student { private : int admno; char name[30]; char address[50]; public : void add_record(void); // function to add records in the file void modify_record(void); // function to modify record void display_record(void); // function to display record of the file void delete_record(void); // function to delete a record }; Write the definition of above member functions |
| Q15. | Class employee { private: int empno; char empname; public: void input(void); void output(void); }; Write function in c++ to perform a) Write a function in C++ to add objects in a binary file b) Write a function in c++ to display objects of the binary file |
| Q15 | Assuming the class EMPLOYEE given below, write functions in C++ to perform the following:- (i) Write the objects of EMPLOYEE to binary file. (ii) Reads the objects of EMPLOYEE from binary file and display them on screen. Class EMPLOYEE { int ENC; char ENAME[0]; PUBLIC: Void GETIT(){ cin>> ENO;gets(ENAME);} Void SHOWIT() { cout>> ENO<<ENAME;<<endl; } }; |
| Q16. | Consider the following class declaration: Class FLIGHT { int flight_no; char destination[20]; float distance; PUBLIC: void INPUT(); // read from user void Write_File(); // write the data to file void OUTPUT(); // read from file & show on screen }; Compute the member functions definitions |
| Q17 | Following is the structure of each record in a data file named “Colony.dat” struct Colony { char colony_code[10]; char colony_name[10]; int no_of_people; }; Wite a function to update the file with a new value of No_of_people. The value of colony_code and no_of_people are read during the execution of the program. |
| Q18 | Write a C++ program, which reads one line at a time form the disk file TEST . TXT , and displays it to a monitor. Your program has to read all the contents of the file. Assume the length of the line not to exceed 80 characters. You have to include all the header files if required |
| Q19 | Assuming that a text file named TEXT1.TEXT already contains some text written into it, write a function named vowelwords(), that reads the file TEXT1.TEXT and creates a new file named TEXT2.TEXT,which shall contain only those words from the file TEXT1.TEXT which does not start with an uppercase vowel(i.e, with ‘A’,’E’,’I’,’O’,’U’). FOR example, if the file TEXT1.TXT contains. Carry umbrella and Overcoat when it Rains then the file TEXT2.TXT shall contain Carry when it Rains. |
| Q20 | Write a C++ program, which initializes a string variable to the content. “ Anil is a great teacher but unfortunately it kills all its pupils. Harimohan” and output the srtring one character at a time to the disk file OUT.TXT. You have to include all the header files if required |
| Q21 | Write a function in C++ to display the data for for a particular book name from a binary file “BOOK.DAT”, assuming the binary file is contained the objects of the following class: class BOOK { int Bno; char Title[20]; PUBLIC: int Rbno(){return Bno;} void Enter(){cin>>Bno;gets(Title);} void Display(){cout<<Bno<<Title<<endl;} char * retname() { return Title; } }; |
| Q22 | Write a function in c++ to copy all the lines from file text1.text into text2.txt which is starting from ‘A’ letter. Assuming that each and every line does not exceed from 50 characters. |
