Which symbol is used with cat command for creating files?
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Which symbol is used with cat command for creating files?
a) >
b) <
c) *
d) /
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- what is the use of ''w'' in file handling ?The first and second arguments of fopen() are O None of the mentioned O O O * That character string containing file pointer & the second argument is the mode character string containing the name of the file & the second argument is the mode The character string containing the name of the user & the second argument is the modeThe function fopen return NULL when: An error occurred while opening the file. An error occurred while reading the file. An error occurred while closing the file. An error occurred while compiling the file.
- TRUE FALSE & is used to pass a parameter by value * is used as a reference operator * is called the dereference operator & in front of a variable identifier means memory address of this variable fstream.h must be included when reading and writing with files ios::app erases the old contents of a ! file when usedpython function that creates and saves data in a file. the saved data represents exam grades. in the function , you will create n random numbers in the range 1-100, where n is the number of students. The function can be called as follows: createFile(filename, n) main function, in which the user inputs the file name and the number of students, then the main calls function createfile. the main should preform validation for n (should be > 0), and the filename(should end with .txt)choose the correct ans : 1. What is use of eof() ?a. Returns true if a file open for reading has reached the next character.b. Returns true if a file open for reading has reached the next word.c. Returns true if a file open for reading has reached the end.d. Returns true if a file open for reading has reached the middle. 2.The mechanism of giving special meaning to an operator is called ____a. Objectb. Inheritancec. Function overloadingd. Operator Overloading 3) Local variables are stored in an area called ___________a) Heapb) Permanent storage areac) Free memoryd) Stack 4)Which of the following is/are valid ways to allocate memory for an integer by dynamic memory allocationin CPP?a. int *p = new int(100);b. int *p; p = new int; *p = 100;c. int *p = NULL; p = new int; *p=100;d. Only 1,2e. All of these 5)Choose the correct option? #include<iostream> using namespace std; class Base {}; class Derived: public Base {}; int main() { Base *bp = new Derived; Derived *dp = new Base; } a.…
- * What applies to normal files The character string containing the name of the user & the second argument is the mode O That character string containing file pointer & the second argument is the O mode None of the mentioned O character string containing the name of the file & the second argument is the mode OMusic App 1. practise file I/O and exception handling; 2. practise String processing. Aim: Task: Create a Java application that transcripts a simple song score sheet. The program asks user for filename of a text file that contains a simple song score sheet in this format: Sample song score sheet 1, song1.txt: #simple song with assumed time signature = 4 d1mls202s 1mld2o2 d1rimlfls 301s1f1m1rld4 Lines beginning with a hash #' is a comment line. A song contains one or more lines of musical notes, d, r, m, f, s, l, tand also o meaning "Off" or rest. Each single character note is followed by a single digit integer in [1 – 4], denoting the duration of the note in number of beats. After transcription, the program outputs the melody on the screen as well as to another text file: Melody output 1, on screen AND in melody_song1.txt: #simple song with assumed time signature Do Me So- Off- So Me Do Re Me Fa| So-- Off = 4 Do- Off- | So Fa Me Re Do--- | The default time signature is 4 beats per…M 10 TRUE FALSE & is used to pass a parameter by value * is used as a reference operator * is called the dereference operator & in front of a variable identifier means memory address of this variable fstream.h must be included when reading and writing with files ios::app
- You have the following function. 1 def funct(a): file = open('file.txt') 3 while True: line = file.readline() if a in line: 4 print(line) file.close() 7 The contents of the file named file.txt is as follows: python python is great! python is the best python is amazing! What would the value of a be if the output is: python is great! python is amazing! Answer:What is the file pointer?Question 5 Identify the correct syntax used to write to a text file. file open('My_data.txt', 'w') file.write(100) file = open('My_data.txt', 'a') file.write(['hello', 'hi', 'hey']) file open('My_data.txt', 'w') file.write('This file contains data') file = open('My_data.txt', 'w') file.write([100, 200, 300j)