Point out the error in the program?
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Point out the error in the
#include<stdio.h> /* Assume there is a file called 'file.c' in c:\tc directory. */ int main() { FILE *fp; fp=fopen("c:\tc\file.c", "r"); if(!fp) printf("Unable to open file."); fclose(fp); return 0; }
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- Using only standard I/O functions (like fopen(), fseek(), ftell(), fgets(), etc.), write a C program to reverse the order of the lines in a text file. That is the first line becomes last, the second line becomes the one before the last one and so on. Note: your program should have two arguments, the input file name and the output file name. Call model: reverseFile Input file:HelloI am happy to see youOutput file:I am happy to see youHelloIn c++ write a code that tells a user to enter a filename and read that text file line by line.Write a program which reads the content of two files “text1.txt” and “text2.txt” line byline and merges them into another file called “merge12.txt”.You can safely assume that the input is valid. (please write the code in programming C)
- In Python do the following: 1) Reading from Files:Suppose we have a text file (‘readfile.txt’) containing the following lines:Hello!My name is Mary Summers.This is my resume.We want to read its contents into Python. Write a code that will load the entire file into a string.Please know that when you write code to open a file, the file is assumed to be in the same directory asyour program. If it is in a different directory, then you need to specify that.What will be the content of 'file.c' after executing the following program? #include<stdio.h> int main() { FILE *fp1, *fp2; fp1=fopen("file.c", "w"); fp2=fopen("file.c", "w"); fputc('A', fp1); fputc('B', fp2); fclose(fp1); fclose(fp2); return 0; }Write a C program named toupper.c that reads the contents of a file, and writes to another file after changing all lowercase letters in the input file to uppercase. The name of the input file and the output file are to be passed as command line arguments. Assume there are only ASCII characters in the input file. The length of the input file is not known beforehand. So make sure your program keeps reading bytes until EOF is reached. Use the library function toupper to concert letters into uppercase. Example: The program is run from the command line as follows; C:\>toupper.exe infile.txt outfile.txt Suppose the contents of the input file infile.txt is: AbcdefG The contents of the output file outfile.txt should be: ABCDEFG
- in c# i need to Write the program named DirectoryInformation that allows a user to continually enter directory names until the user types end. If the directory name exists, display a list of the files in it; otherwise, display the following message, Directory foo does not exist, to indicate the directory does not exist (foo would be the name of the directory to be checked) . Create as many test directories and files as necessary to test your program. An example of the program is shown below: Enter a directory >> lorem lorem contains the following files lorem/ipsum.txt Enter another directory or type end to quit >> foo Directory foo does not existProgram in C only - thanks Write a C Program that writes all the numbers from 1 to 100,000 that are both prime and the sum of the digits > 9. For example 47, 911 are 2 such numbers, since the sum of the digits is > 9. After finding a number, you must immediately write it to the output file. Open the file, write the number you just found, and close the file. Measure how much elapsed time it takes to do this processing. Yes, it is inefficient, but we are trying to force some I/O usage, which will cause interrupts. When this process is completed, next have the program fork and create 10 separate processes. Each process would find search a range of 1 to 100,000 for these prime and sum 11 numbers. One process searches 1 to 10000, another 10001 to 20000 etc. Each process performs the exact same tasks , in the same way, as the first part of the problem, but write the output to 10 separate files, one for each process. When all 10 processes are done, read the ten files to make one file…Write a function count_character(filename, character) that takes in a filename and a character, both as strings, and returns the total number of times the given character occurs in the file. Examples: Contents of hello.txt:HelloHELLOHelloHELLO count_character('hello.txt', 'L') returns 4count_character('hello.txt', 'H') returns 4count_character('hello.txt', 'e') returns 2 Requirements: Please use Python Programming only Show screenshot of your work.
- Consider a file named transaction.txt which contains unknown number of lines. Each line contains data of one transaction as follows: username (string), amount (float), and membership number (int). Write a C++ program that reads the data from the file, then displays on screen the number of users, the total amount, the average of amounts, the lowest amount and the highest amount. Reading from the file should stop when one or more of the conditions given below becomes true:(a) The end of file has been reached. (b) The “user999” is reached.Consider a file named transaction.txt which contains unknown number of lines. Each line contains data of one transaction as follows: username (string), amount (float), and membership number (int). Write a C++ program that reads the data from the file, then displays on screen the number of users, the total amount, the average of amounts, the lowest amount and the highest amount. Reading from the file should stop when one or more of the conditions given below becomes true:(a) The end of file has been reached. (b) The “user999” is reached.transaction.txtHassan 12.5 12345 Mariam 5.2 87542 Zahra 33.1 93568 :::: ::Sample Screen OutputNumber of users: 54 Transactions total amount: 2658.7 The average of amounts: 120 The highest amount: 280 The lowest amount: 5.2Write a C program that, given a text file, constructs Huffman code based on the character frequencies of the file and then encodes the file accordingly. The executable must accept the following command line options:• -i filename for the input file • -o filename for the output file Use the fread function, use FILE, size, etc. Please use the following to write the code: #include <stdio.h> #include <stdlib.h> #include <string.h> #include <getopt.h>