- Your task is to read a file containing arithmetic instructions such as 3+4 4 - 10 7 11 Each instruction contains an integer, an operator (+, -, or *), and another integer. Return a list of the results. If there is any error, raise an IOError. arithmetic.py 1 ## 2 # Reads a file containing arithmetic expressions and returns a list of 3 # the results after computing each expression. 4 # @param filename the file name 5 # @return a list of results 6 # 7 def read(filename) : 8 9

- Your task is to read a file containing arithmetic instructions such as 3+4 4 - 10 7 11 Each instruction contains an integer, an operator (+, -, or *), and another integer. Return a list of the results. If there is any error, raise an IOError. arithmetic.py 1 ## 2 # Reads a file containing arithmetic expressions and returns a list of 3 # the results after computing each expression. 4 # @param filename the file name 5 # @return a list of results 6 # 7 def read(filename) : 8 9

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter14: Files And Streams

Section: Chapter Questions

Problem 2E: Create a program named FileComparison that compares two files. First, use a text editor such as...

See similar textbooks

Similar questions

Create a program named FileComparison that compares two files. First, use a text editor such as Notepad to save your favorite movie quote. Next, copy the file contents, and paste them into a word-processing program such as Word. Then, write the file-comparison application that displays the sizes of the two files as well as the ratio of their sizes to each other. To discover a files size, you can create a System. 10. Filelnfo object using statements such as the following, where FILE_NAME is a string that contains the name of the file, and size has been declared as an integer: FileInfo fileInfo = new FileInfo(FILE_NAME); size = fileInfo.Length;
Modify task5.c so it will print out a content of a file backward. You will need to use lseek() to accomplish this task. Modify this program to print the file backward.*/ #include <stdio.h>#include <unistd.h>#include <fcntl.h> int main(int argc, char *argv[]){ char *filename = argv[1]; int input = open(filename, O_RDONLY); char c; while(1){ int r = read(input,&c,1); if(r==0) break; write(1,&c, 1); } close(input); return 0;}
The following code is for the code file namedpipe_p1.c. // This process writes first, then reads #include <stdio.h> #include <string.h> #include <fcntl.h> #include <sys/stat.h> #include <sys/types.h> #include <unistd.h> int main() { int fd; // FIFO file path char * myfifo = "/tmp/myfifo"; // Creating the named file(FIFO) // mkfifo(<pathname>, <permission>) mkfifo(myfifo, 0666); char arr1[80], arr2[80]; // Open FIFO for write only fd = open(myfifo, O_WRONLY); // Take an input arr2ing from user. // 80 is maximum length printf("your message: "); fgets(arr2, 80, stdin); // Write the input arr2ing on FIFO // and close it write(fd, arr2, strlen(arr2)+1); close(fd); // Open FIFO for Read only fd = open(myfifo, O_RDONLY); // Read from FIFO read(fd, arr1, sizeof(arr1)); // Print the read message printf("Received: %s\n", arr1); close(fd);…
Please help me modify my code according to the error prompt #include <stdio.h> void processData(const char* inputFilePath, const char* outputFilePath) { FILE* inputFile = fopen(inputFilePath, "r"); FILE* outputFile = fopen(outputFilePath, "w"); int n; fscanf(inputFile, "%d", &n); // Read the number of data points fprintf(outputFile, "%d\n", n); // Write the number of data points to output int value; for (int i = 0; i < n; i++) { fscanf(inputFile, "%d", &value); // Read the data point int squaredValue = value * value; // Compute the square of the data point fprintf(outputFile, "%d\n", squaredValue); // Write the squared value to output } fclose(inputFile); fclose(outputFile);} int main() { processData("input_file.dat", "output_file.dat"); return 0;}
Chapter 4. PC #14. Line Numbers (page 265) Write a program that asks the user for the name of a file. The program should display the contents of the file with each line preceded with a line number followed by a colon. The line numbering should start at 1. I should be easily type input1.txt and easily print out the output. Test Case 1 Please enter the file name or type QUIT to exit:\nquitENTER Test Case 2 Please enter the file name or type QUIT to exit:\nbadfilename.txtENTERFile: badfilename.txt does not exist.\nPlease enter the file name again or type QUIT to exit:\nquitENTER Test Case 3 Please enter the file name or type QUIT to exit: \ninput1.txt ENTER1: a\n2: b\n3: c\n4: d\n
Write a small program that copies everything in a tet file to another file. The text file is calledin.txt and the output file is called out.txt. Two files should be exactly the same after copying(the first file shouldn’t be changed, and the second file should be the same as the first one).Your program should define a function called copyFile to copy the input file to the output filewith two arguments: a file pointer to the input file and a file pointer to the output file. You shouldnot and do not need to use an array during copying.
Through this programming assignment, the students will learn to do the following: Practice processing command line arguments. Perform basic file I/O. Use structs, pointers, and strings. Use dynamic memory. This assignment asks you to sort the letters in an input file and print the sorted letters to an output file (or standard output) which will be the solution. Your program, called codesolve, will take the following command line arguments: % codesolve [-o output_file_name] input_file_name Read the letters in from the input file and convert them to upper case if they are not already in uppercase. If the output_file_name is given with the -o option, the program will output the sorted letters to the given output file; otherwise, the output shall be to standard output. In addition to parsing and processing the command line arguments, your program needs to do the following: You need to construct a doubly linked list as you read from input. Each node in the list will link to the one in…
Please help Using python Interpreter In this exercise you will create a tiny interpreter for simple arithmetic operations. Your program will read it input from a file containing one command per line and it will write its output to a second file. Specifications 1. Your program must ask the user for the names of both files. If there are problems with either file (inaccessible, unwritable, etc.) your program should complain and request file names again. 2. Your program should append “.txt” to a file name if it does not already have a .txt suffix. 3. The commands will look like this: operation value1 value2. See the Commands.txt file for details. If the input file does not exist or the output file is not writable the program must complain and ask the user for alternative file name(s). 4. The operations are add, sub, multiply, divide, and power. The commands are not case- sensitive. The values must be integers. 5. An empty line should be silently ignored. 6. Your program must read the…
in python 1. 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
Write program that reads a list of names from a data file and displays the names to the console. The program should prompt the user to enter a filename. Create such a file and check your code. Solve with python. Example of code format: #Prompt the user for file name file_name = input("Enter file name : ") #Open file with open(file_name,"r") as file: #Read file content f = file.readline() #split the contents into numbers numbers = f.split(' ') test_list = [int(i) for i in numbers] res = 1 #Find the product for i in test_list: res*=i #Print result print("Product of numbers in the list :",res)
Chapter 4. PC #14. Line Numbers (page 265) Write a program that asks the user for the name of a file. The program should display the contents of the file with each line preceded with a line number followed by a colon. The line numbering should start at 1. Test Case 1 Please enter the file name or type QUIT to exit:\nquitENTER Test Case 2 Please enter the file name or type QUIT to exit:\nbadfilename.txtENTERFile: badfilename.txt does not exist.\nPlease enter the file name again or type QUIT to exit:\nquitENTER Test Case 3 Please enter the file name or type QUIT to exit: \ninput1.txt ENTER1: a\n2: b\n3: c\n4: d\n
Using Python: Write a script which appends a line counter to an input file. This script creates a program listing from a source program. This script should prompt the user for the names of two files. The script copies the lines of text from the input file to the output file, numbering each line as it goes. The line numbers should be right-justified in 4 columns here in the input and ouput