If it is assumed that a text file named parts.txt has been created and it contains many records/lines that consists of a part description and a part quantity separated by a comma as shown in the following record/line example: MOUSE,150 Write code segments to execute the following tasks: • Open this file for reading and read/copy all file records into an array. Include all necessary declarations and error checking/handling code when opening this file. • Print all file records saved into the array in a list box or any other control of your choice. It is required to use a foreach loop for this task.

If it is assumed that a text file named parts.txt has been created and it contains many records/lines that consists of a part description and a part quantity separated by a comma as shown in the following record/line example: MOUSE,150 Write code segments to execute the following tasks: • Open this file for reading and read/copy all file records into an array. Include all necessary declarations and error checking/handling code when opening this file. • Print all file records saved into the array in a list box or any other control of your choice. It is required to use a foreach loop for this task.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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1: Create a file named dedup.js. Write a program that removes duplicates from an array. The program should be able to read an unspecified number of numbers input by the user. The user should enter a negative number when they are done entering scores. The program should remove all duplicates from the array and then iterate over the new array and display it. 2: Create a file named dedeup_2.js. Modify your dedup program and prompt the user to enter a number n. Remove all elements from the array that occur more than n times. i need to write program with const readline = require('readline');
JAVA PROGRAM Chapter 4. Homework Assignment (read instructions carefully) Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits): Total: nnnnn.nnn Average: nnnnn.nnn Class name: FileTotalAndAverage double_input1.txt double_input2.txt PLEASE MODIFY THIS CODE, SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES ALL THE TEST CASES, BECAUSE WHEN I UPLOAD IT TO HYPERGRADE IT DOES NOT PASS THE TEST CASES. IT HAS TO PASS ALL THE TEST CASES. I PROVIDED THE CORRECT OUTPUT AS A SCREENSHOT AS A REFERRENCE. import java.io.BufferedReader;import java.io.FileReader;import java.io.IOException;import java.util.InputMismatchException;import java.util.Scanner;public class FileTotalAndAverage { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String fileName; do {…
Create a structure called applianceTvpe with the following members. Use the proper variable TYPES for the members: name; SUpplierlD: modelNo: cost; Create an array variable of type applianceType that can hold 50 components. Write the code segment to read from a file into the structure array. Declare an input file stream identifier for this purpose. Open the file and read until end of file. Keep a count of how many rows actually read. The data file contains the following data: RefrigeratorABC 80 4657 521.62 ToasterOven 100 3245 245.96 MicroWave 95 7878 345.67 Using a looping construct, output to the console (cout) the data read into the structure array. Make sure you do not go outside the bounds of the array or beyond the number of rows actually read. You do not need to write any #include statements, using statements and you do not have to write code to open the file. Assume the file is open. You do need to declare variables needed for the program segment.
Write the code segments based on the given descriptions: Declare a file pointer called input. Open a file called location.txt for reading using this pointer. If the file is not available, display “File does not exist.”. The content of the text file location.txt is as shown below. It includes the location, latitude and longitude values. FILE location.txt CONTENTS <Location> <Latitude> <Longitude> UTM 1.5523763 103.63322 KLCC 3.153889 101.71333 UM 3.1185 101.665 UMS 6.0367 116.1186 UNIMAS 1.465174 110.4270601 Ask the user to enter a location. Check if the user’s location can be found in the text file. If found, display the location, latitude and longitude as shown below. SAMPLE OUTPUT Enter a location: UM Location : UM Latitude : 3.1185 Longitude : 101.6650 Otherwise display “Sorry, location could not be found”. SAMPLE OUTPUT Enter a location : MMU Sorry, location could not be found
create a program which will write data to a file name the file open and shut.cpp the data will be five test scores create an array with a constant SIZE of 5 (call the array tests) initialize the array to five scores of your choosing open a text file called scores.txt to store the data in use a for loop to enter the test scores to scores file each score should be on a separate line close the file display the words "Mission accomplished!" reopen the file read each test score from the file and display it on screen each score on a separate line close the file display the words "Coffee break!" save and run your program confirm that a file named scores.txt is in the project's folder the file should list the five test scores from the array
createDatabaseOfProfiles(String filename) This method creates and populates the database array with the profiles from the input file (profile.txt) filename parameter. Each profile includes a persons' name and two DNA sequences. 1. Reads the number of profiles from the input file AND create the database array to hold that number profiles. 2. Reads the profiles from the input file. 3. For each person in the file 1. creates a Profile object with the information from file (see input file format below). 2. insert the newly created profile into the next position in the database array (instance variable).
1. Create a file named dedup.js. Write a program that removes duplicates from an array. The program should be able to read an unspecified number of numbers input by the user. The user should enter a negative number when they are done entering scores. The program should remove all duplicates from the array and then iterate over the new array and display it. dedup.js const readline = require('readline'); const rl = readline.createInterface({ input: process.stdin, output: process.stdout }); const numbers = []; function readInput() { rl.question('Please enter a number or enter a negative to exit: ', (input) => { if (input < 0) { let deduped = [...new Set(numbers)]; console.log('Your array without duplicates is:', deduped); rl.close(); } else { numbers.push(Number(input)); readInput(); } }); } readInput(); 2. Create a file named dedeup_2.js. Modify your dedup program and prompt the…
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TRUE FALSE The dereference operator * is used to obtain the address of a variable. The void functions return noting when called. the flag eof() is FALSE at the beginning of a text file. There is no way to show text on graphic screen The reserved word struct is used when declaring a void function.
3.5: This problem will require your program to read a file of student records.Before you the coding part, manually create a text file named cs521_3_5_input.txt Populate the file with rows of comma separated records in of the format:  Name of Student  Student ID  GPA For example (you can use your own names and data): Jerry Seinfeld, 1, 3.7Elaine Benes, 52, 2.8George Costanza, 13, 3.9 Cosmo Kramer, 24, 3.4 Now write a python program that performs the following steps: a. Open and read the file created above line by line  The text file must be stored in the same directory as your program Parse the data in each row (records of one student) into a 3 element tuple Store each tuple in a single list, making an array that will contain all student records After the input file is completely processed, print the list of tuples  Include an appropriate description  The list object does not need to be formatted  There is no output file! Example Output:Student Records: [(Jerry Seinfeld, 1,…
1. Create a file that contains 20 integers or download the attached file twenty-integers.txttwenty-integers.txt reads:12 20 13 45 67 90 100 34 56 89 33 44 66 77 88 99 20 69 45 20 Create a program that: 2. Declares a c-style string array that will store a filename. 3. Prompts the user to enter a filename. Store the file name declared in the c-string. 4. Opens the file. Write code to check the file state. If the file fails to open, display a message and exit the program. 5. Declare an array that holds 20 integers. Read the 20 integers from the file into the array. 6. Write a function that accepts the filled array as a parameter and determines the MAXIMUM value in the array. Return the maximum value from the function (the function will be of type int). 7. Print ALL the array values AND print the maximum value in the array using a range-based for loop. Use informational messages. Ensure the output is readable.