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CP2-Module 7
File Handling: The FILE Object and <fstream>
| Question | Answer |
|---|---|
| File mode that opens or create a text file in writing mode w r a x | w |
| Reads a character from a file: getc() fclose() puc() fopen() | getc() |
| It is created for the permanent storage of data. Variable Constant File List | File |
| Output is? while( (ch = getchar()) != '\n') { putc(ch, fp); } Puts character into a variable Gets a character until enter key is pressed Gets a character, put it into a file pointer until an enter is pressed Gets a character | Gets a character, put it into a file pointer until an enter is pressed |
| Refers to the name of the file File pointer Filename file extension file attribute | Filename |
| Writes a set of data to a file fprintf() fclose() fopen() *fp | fprintf() |
| What is the correct syntax for declaring a file pointer? file *fp; *FILE *fp; FILE *fp; File *fp; | FILE *fp; |
| What is the correct syntax for fclose()? FCLOSE(fp); Fclose(fp); fclose(fp); fclose(“fp”); | fclose(fp); |
| EOF means ______________________________ End of format End of float End of function End of file | End of file |
| Writes a character to a file: fclose() fopen() puc() getc() | putc() // However, it is marked wrong. It is also not getc(). |
| Which operator is used to insert the data into the file? << >> < > | << |
| Which of the following header file is required for creating and reading files? ifstream stream fstream ofstream | fstream |
| Which of the following is used to create a stream that performs both input and output operations? fstream ifstream iostream ofstream | fstream |
| A C++ library that allows working with files fstream cstdlib ctype cmath | fstream |
| Which header file is used for reading and writing to a file? #include<iostream> #include<cmath> #include<fstream> #include<conio> | #include<fstream> |
| Which stream class is used to both read and write on files? ofstream fstream ofstream opstream | fstream |
| Which stream class is to only read from files? iostream ofstream fstream ifstream | ifstream |
| What can be used to input a string with blank space? getline inline sideline putline | getline |
| It represents a sequence of bytes on the disk where a group of related data is stored. Array Parameter Variable File | File |
| By default, all the files in C++ are opened in _________ mode. Octal ASCII Text Binary | Text |
| An operation where in data is added to the existing data of file Delete Create Close Append | Append |
| A function directly writes into the file: fscanf() fprintf() fopen() fclose() | fprintf() |
| What is correct syntax for fopen()? fp = fopen(one.txt, w); fp = fopen("one.txt", "w"); fp = fopen(one.txt, "w"); fp = fopen(“one.txt”, w); | fp = fopen("one.txt", "w"); |
| An operation wherein data is added to the existing data of a file Combine Concatenate Append Add | Append |
| Which of the following is used to create an output stream? iostream ofstream fstream ifstream | ofstream |
| Which of the following is used to create a stream that performs both input and output operations? iostream ofstream ifstream fstream | fstream |
| Which stream class is to only write on files? opstream ifstream ofstream fstream | ofstream |
| The ifstream would be used when: appending a file creating a file reading a file removing a file | reading a file |
| What is the return type open() method? double int char bool | bool |
| Which header file is required to use file I/O operations? <ostream> <iostream> <ifstream> <fstream> | <fstream> |
| When will the cin can start processing of input? Delete file Both read and write file After pressing return key By pressing backspace | After pressing return key |
| What is the output of the given program? #include < iostream > using namespace std; int main () { char str[] = "Steve jobs"; int val = 65; char ch = 'A'; cout << val << endl; return 0; } 65 A a Error 65 | 65 |
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Easy Kwatro
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