Write a C++ Program to Merge Two Files into a Single file using File Handling.
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- FILE* inFile = fopen("filenam.txt", "r"); Given the above code segment, which of the following would output "FILE NOT FOUND" if the file could not be opened? Group of answer choices if(inFile == NULL) { printf("FILE NOT FOUND"); } if(inFile) { printf("FILE NOT FOUND"); } if(!inFile->is_open()) { printf("FILE NOT FOUND"); } None of these ============= What does sscanf do? Group of answer choices Reads from a file Reads from a keyboard Reads from a string Writes to a screen =========== What comes first in the software development life cycle? Group of answer choices Algorithm design Identifying the problem Coding TestingPython Question: Which statement correctly opens an existing file if you want to add lines to it? A. open('data.txt', 'a') B. f = open('data.txt', 'append') C. f = open('data.txt', 'a') D. data = open('data.txt', 'w')C++ Add a search command that asks the user for a string and finds the first line that contains that string. The search starts at the first line currently displayed and stops at the end of the file. If the string is found, the line that contains it is displayed at the top. In case the user enters a string X that does not occur in the file, the program should print the error message: ERROR: string "X" was not found. Attached is the first lines of the .txt file
- Use C++ Write a program that prints a menu of choices: L -> Find the lowest value in a file H -> Find the highest value in a file A -> Find the average value in a file Q -> Quit Choose: The program does input validation and asks the user to reenter as long as the user’s choice does not correspond to an item on the menu. Invalid choice. Re-enter: If the user selects any valid choice other than Quit, the program prompts the user to enter the file name, Enter input file name: then reads the content of the file and prints the value requested (highest value, lowest value or average value). Highest value is 0 Lowest value is 0 Average value is 0 If the file cannot be opened or is empty, the program should display the message: File empty or could not open file Then the program displays the menu again. If the user selects Quit, the program prints “Exiting” and terminates. Additional requirements – Make sure you meet all the requirements You are not allowed to use arrays You are…Computer Science If we would like to rename a file from "file1.txt" to "file2.txt" in the current directory, specify the command we should use.write a program n this code to create the file in write mode using the fopen function. If the file opened successfully, then code asking input from the user and store it in created file.the information must include your name, dob,your education,place of birth
- A file named data.txt contains an unknown number of lines, each consisting of a single integer. Write a program that creates the following three files: dataplus.txt dataminus.txt zeros.txt The program should read each line of the data.txt file and perform the following: If the line contains a positive number, that number should be written to the dataplus.txt file. If the line contains a negative number, that number should be written to the dataminus.txt file. If the line contains the value 0, do not write the value to a file. Instead, keep a count of the number of times 0 is read from the data.txt file. After all the lines have been read from the data.txt file, the program should write the count of zeros to the zeros.txt file.Program #1 5. Write a program named filemaker.py that will be used to store the first name and age of some friends in a text file named friends.txt. The program must use a while loop that prompts the user to enter the first name and age of each friend. Each of these entries should be written to its own line in the text file (2 lines of data per friend). The while loop should repeat until the user presses Enter (Return on a Mac) for the name. Then, the file should be closed and a message should be displayed. See Sample Output.SAMPLE OUTPUT Enter first name of friend or Enter to quit DennyEnter age (integer) of this friend 24Enter first name of friend or Enter to quit PennyEnter age (integer) of this friend 28Enter first name of friend or Enter to quit LennyEnter age (integer) of this friend 20Enter first name of friend or Enter to quit JennyEnter age (integer) of this friend 24Enter first name of friend or Enter to quitFile was created Program #2 6. Now write a program named…Computer Science Create a function that can find the largest writable and non-writable file by the user in a directory without subdirectories (flat directory). This function will be part of a program named maxfile that can be invoked like this: ./maxfile <directory> You will be reading the contents of the directory passed as the only argument to your program using the function readdir(). Begin by opening the directory using opendir(), and obtain information for every file using stat(). stat() allows you to check whether a file is a regular file or a directory. (In this assignment, hard and symbolic links, special files, etc. will be ignored.) At the end, close the directory using closedir(). For Functionality 1, the input will be assumed to be a flat directory and subdirectories should not be traversed. Regular files must be separated into those for which the user has permission to write and those for which the user does not have permission to write. For each of the two types…
- C++ Add a search command that asks the user for a string and finds the first line that contains that string. The search starts at the first line currently displayed and stops at the end of the file. If the string is found, the line that contains it is displayed at the top. In case the user enters a string X that does not occur in the file, the program should print the error message: ERROR: string "X" was not found.program two applications that will work together to perform reduction on multiple files. Reduction operation is summing the contents of the file. You may assume files contain a number on each line and there are no more than 100000 numbers in the file. The first program should get a directory name as argument. Then it should obtain the list of files in the directory either by using ls program and pipes or by using readdir system call. This program then should fork and execute the second program, passing the folder name and the filename. The second program should get the name of directory and the filename. Then it should read the file into an array. The reduction operation should be done using multiple threads. To get full points, you must write your program in a way that will actually perform operation in parallel. If necessary use mutexes, but it is possible to the task without them. Print out the summation. Finally, write a document that will explain your code. It should also have a…Write a script named copyFile.py. This script should prompt the user for the names of two text files. The contents of the first file should be input and written to the second file. An example of the program input is shown below: Enter the input file name: copyFrom.txt Enter the output file name: copyTo.txt Output: After running the program, a file named copyTo.txt will be outputted that contains the text from the copyFrom.txt file.