Starting out with Visual C# (4th Edition)
4th Edition
ISBN: 9780134382609
Author: Tony Gaddis
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 5.6, Problem 5.26CP
If you call the File.AppendText method and the specified file already exists, what happens to the existing file?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Create a list of 5 words, phrases and company names commonly found in phishing messages. Assign a point value to each based on your estimate of its likelihood to be in a phishing message (e.g., one point if it's something likely, two points if modereratly, or three points if highly likely). Write an application that scans a file of text for these terms and phrases. For each occurance of a keyword or phrase within the text file, add the assigned point value to the total points for the number of occurences and the point total. Show the point total for the entire message. (Write the program in Java)
Your goal is to implement an application that reads a file, modify its content, and writes the modification back to the same file. The file includes 2 lines of integers. The first line indicates which integer on the second line has been selected (active). And the second line lists all the integers in the list (maximum of 10).
Your application should have a menu that is constantly displayed on the screen (see the menu below). Right below the menu, the program should display list of all integers in the file (second line). Also, it should show which integer is currently selected (active) by displaying an arrow to its left.
The user should be able to select a menu item by entering its associated key and pressing the Enter key on the keyboard.
“Select Down” selects the next item in the list. If the item at the end of the list is selected, this option selects the first item in the list. “Select Up” selects the previous item in the list. If the first item is selected, this option selects the…
.Write code for below problem. The input below is just an example and you should implement
independent from the input. Please paste the link to the answer shared using pastebin,
dotnetfiddle, jsfiddle, or any other similar web-site.
You will have an orthogonal triangle input from a file and you need to find the maximum sum of the numbers
according to given rules below;
1. You will start from the top and move downwards to an adjacent number as in below.
2. You are only allowed to walk downwards and diagonally.
3. You can only walk over NON PRIME NUMBERS.
4. You have to reach at the end of the pyramid as much as possible.
5. You have to treat your input as pyramid.
According to above rules the maximum sum of the numbers from top to bottom in below example is 24.
*1
*8 4
2 *69
85*9 3
As you can see this has several paths that fits the rule of NOT PRIME NUMBERS; 1>8>6>9, 1>4>6>9, 1>4>9>9
1 + 8 + 6 + 9 = 24. As you see 1, 8, 6, 9 are all NOT PRIME NUMBERS and walking over these yields the…
Chapter 5 Solutions
Starting out with Visual C# (4th Edition)
Ch. 5.1 - Prob. 5.1CPCh. 5.1 - Prob. 5.2CPCh. 5.1 - Prob. 5.3CPCh. 5.2 - What is a loop iteration?Ch. 5.2 - What is a counter variable?Ch. 5.2 - What is a pretest loop?Ch. 5.2 - Does the while loop rest its condition before or...Ch. 5.2 - What is an infinite loop?Ch. 5.3 - What messages will the following code sample...Ch. 5.3 - How many rimes will the following loop iterate?...
Ch. 5.4 - Name the three expressions that appear inside the...Ch. 5.4 - You want to write a for loop that displays I love...Ch. 5.4 - What would the following code display? for (int...Ch. 5.4 - What would the following code display? for (int...Ch. 5.5 - What is a posttest loop?Ch. 5.5 - What is the difference between the while loop and...Ch. 5.5 - How many times will the following loop iterate?...Ch. 5.6 - What is an output file?Ch. 5.6 - What is an input file?Ch. 5.6 - What three steps must be taken by a program when...Ch. 5.6 - What is the difference between a text file and a...Ch. 5.6 - Prob. 5.22CPCh. 5.6 - What type of object do you create if you want to...Ch. 5.6 - What type of object do you create if you want to...Ch. 5.6 - If you call the File.CreateText method and the...Ch. 5.6 - If you call the File.AppendText method and the...Ch. 5.6 - What is the difference between the WriteLine and...Ch. 5.6 - What method do you call to open a text file to...Ch. 5.6 - What is a files read position? Initially, where is...Ch. 5.6 - How do you read a line of text from a text file?Ch. 5.6 - How do you close a file?Ch. 5.6 - Assume inputFile references a StreamReader object...Ch. 5.7 - What is the benefit of using an Open and/or Save...Ch. 5.7 - Prob. 5.34CPCh. 5.8 - What does a Random objects Next method return?Ch. 5.8 - What does a Random objects NextDouble method...Ch. 5.8 - Write code that creates a Random object and then...Ch. 5.8 - Write code that creates a Random object and then...Ch. 5.8 - Prob. 5.39CPCh. 5.8 - What happens if the same seed value is used each...Ch. 5.9 - Prob. 5.41CPCh. 5.9 - Prob. 5.42CPCh. 5 - ListBox controls have an __________ method that...Ch. 5 - A __________ is commonly used to control the...Ch. 5 - A(n) __________ loop tests its condition before...Ch. 5 - The term __________ is used to describe a file...Ch. 5 - The term __________ file is used to describe a...Ch. 5 - A __________ file contains data that has been...Ch. 5 - When you work with a __________ file you access...Ch. 5 - Prob. 8MCCh. 5 - A __________ object is an object that is...Ch. 5 - When a program works with an input file, a special...Ch. 5 - When the user selects a file with the Open dialog...Ch. 5 - The __________ control displays a standard Windows...Ch. 5 - Once you have created a Random object, you can...Ch. 5 - Prob. 14MCCh. 5 - When you run an application, the applications form...Ch. 5 - If the ListBox is empty, the Items.Count property...Ch. 5 - To increment a variable means to increase its...Ch. 5 - When a variable is declared in the initialization...Ch. 5 - The while loop always performs at least one...Ch. 5 - The term read file is used to describe a file that...Ch. 5 - To append data to an existing file, you open it...Ch. 5 - As items are read from the file, the read position...Ch. 5 - The numbers that are generated by the Random class...Ch. 5 - Prob. 10TFCh. 5 - What is contained in the body of a loop?Ch. 5 - Write a programming statement that uses postfix...Ch. 5 - How many iterations will occur if the test...Ch. 5 - What are filename extensions? What do they...Ch. 5 - When an input file is opened, what is its read...Ch. 5 - How can you read all of the items in a file...Ch. 5 - What is a variable that is used to accumulate a...Ch. 5 - By default, the Open dialog box displays the...Ch. 5 - Prob. 9SACh. 5 - Prob. 10SACh. 5 - Write a loop that displays your name 10 times.Ch. 5 - Write a loop that displays all the odd numbers...Ch. 5 - Write a loop that displays every fifth number from...Ch. 5 - Write a code sample that uses a loop to write the...Ch. 5 - Assume that a file named People.txt contains a...Ch. 5 - Distance Calculator If you know a vehicles speed...Ch. 5 - Distance File Modify the Distance Calculator...Ch. 5 - Celsius to Fahrenheit Table Assuming that C is a...Ch. 5 - Prob. 4PPCh. 5 - Pennies for Pay Susan is hired for a job, and her...Ch. 5 - Prob. 6PPCh. 5 - Prob. 7PPCh. 5 - Prob. 8PPCh. 5 - Prob. 9PPCh. 5 - Addition Tutor Create an application that...Ch. 5 - Random Number Guessing Game Create an application...Ch. 5 - Calculating the Factorial of a Number In...Ch. 5 - Random Number File Writer Create an application...Ch. 5 - Random Number File Reader This exercise assumes...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Determine the force in each member of the truss and state if the members are in tension or compression. Prob. R...
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
isPrime Method A prime number is a number that is evenly divisible only by itself and 1. For example, the numbe...
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
Write a Vole program that places 0s in all the memory cells from address 0xA0 through 0xC0 but is small enough ...
Computer Science: An Overview (13th Edition) (What's New in Computer Science)
3.1 Discuss the differences between an error and a residual.
Elementary Surveying: An Introduction To Geomatics (15th Edition)
Suppose in the sample problem at the end of this chapter that modular fixturing is used, which reduces the tool...
Degarmo's Materials And Processes In Manufacturing
Which of the following is a character literal? B B
Starting Out with C++ from Control Structures to Objects (9th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- write the code to lookup, add and remove phoneentries from the phonebook text file . These are the code we use for the lookup, add and remove in the case statement.(Lookup)# Look someone up in the phone bookgrep $1 phonebook (add)echo "$1 $2" >> phonebooksort -o phonebook phonebook (Remove)grep -v "$1" phonebook > /tmp/phonebookmv /tmp/phonebook phonebook Write a complete Bash script which will accept up to three command-line arguments: the first one is either (lookup, add or remove), the second one is a name enclosed in single quotes and the third one (if doing an add) is a phone number enclosed in single quotes. Using a case statement to match on either lookup, add or remove, the script should then perform the requested operation. Again here, you should first check for null arguments before continuing with the rest of the script or requested operation. In addition, the person may not be in the phonebook for lookup or remove so, you need to account for this.arrow_forwardWhen it loads, the list of car objects should be created by reading from the above file. When Add Car button is clicked the following screen should appear: a Add a New Car Model: Year: Çolor. Mleage: Cancel Add When the user fills out new car information and clicks "Add", the new car object is created, the form is closed, so that the main form is shown again, and the newly created car object is added to the list of cars. When "View cars" button is clicked, the following form shows, displaying all car objects currently in the list (use Getlotel) function here. You will also have to send the list of cars from the main form to tis form. To do this in the view form have a public variable for list of cars, and assign to it the list of cars from the main form). ag View Cars Model: Accord, Year.20166 Year. 20166, Color: Blue, Mieage: 0 Model: Passat, Year:2014 Year: 2014, Color: White, Mileage: 20000 Closearrow_forwardYou must now write a method readVehicleData() in the ReservationSystem class, that reads this data, creates corresponding Vehicle objects and adds those objects to vehicleList. The name of the file that you read from should be selected using a file dialog box -- the name should not be passed to readVehicleData() as a parameter.arrow_forward
- please create a method to read the file in every line and it splits the line by comma in javaarrow_forwardFind the attached file.arrow_forwardJava Programming: Below is the shank.java file which is the main method file along with shank.txt. The main goal is to make sure to use this method: (List<String> lines = Files.readAllLines(Paths.get(filename));) to read the text file. Show the full code with the text file being read in the output. There must be no error at all. package mypack; import java.io.IOException;import java.nio.charset.Charset;import java.nio.charset.StandardCharsets;import java.nio.file.Files;import java.nio.file.Path;import java.nio.file.Paths;import java.util.List; public class Shank { public static void main(String[] args) { Path filePath = Paths.get("shank.txt"); Charset charset = StandardCharsets.UTF_8; if (args.length != 1) { System.out.println("Error: Exactly one argument is required."); System.exit(0); } String filename = args[0]; try { List<String> lines = Files.readAllLines(Paths.get(filename)); for (String line : lines) { try {…arrow_forward
- Answer All the questions. Make sure your answers are short and precise. You can use (Q1.txt or Ed) files to check your answers for Q1. 1. The phone numbers collected from questionnaire is a mess. Design a regular expression to filter out those numbers that are stored in the standard format "+00-0-0000-0000" from the file called "Q1.txt" and redirect the results to the "cleaned.txt". +61392144979 +61 3 9214 4778 +61-3-9214-4980 +66(2)51574430 +61-3-9285-7706 Note: Only +61-3-9214-4980 and +61-3-9285-7706 are the valid results.arrow_forwardImplement the "Remove song" function. Prompt the user for the unique ID of the song to be removed.Ex: REMOVE SONG Enter song's unique ID: JJ234 "All For You" removedarrow_forwardIn Java Oleae nust read a file A photographer is organizing a photo collection about the national parks in the US and would like to annotate the information about each of the photos into a separate set of files. Write a program that reads the name of a text file containing a list of photo file names. The program then reads the photo file names from the text file, replaces the "_photo.jpg" portion of the file names with "_info.txt", and outputs the modified file names. Assume the unchanged portion of the photo file names contains only letters and numbers, and the text file stores one photo file name per line. If the text file is empty, the program produces no output. Ex: If the input of the program is: ParkPhotos.txt and the contents of ParkPhotos.txt are: Acadia2003_photo.jpg AmericanSamoa1989_photo.jpg BlackCanyonoftheGunnison1983_photo.jpg CarlsbadCaverns2010_photo.jpg CraterLake1996_photo.jpg GrandCanyon1996_photo.jpg IndianaDunes1987_photo.jpg LakeClark2009_photo.jpg…arrow_forward
- T5arrow_forwardPlease written by computer source Has to return string//ToDo 4 add a getter method - getYear - to return just the Year value of the date // see other filepublic String getYear() { //To Do }arrow_forwardIn Java - I'm having a hard time with this part of my project. Under menu option A and B I need to do the following: The program will READ in data from a text file named StudyHours.txt. The user corrects any bad data. The program updates the information in StudyHours.txt file. For example if the file contains a letter grade of K which is not a possible letter grade. I'm not sure if I can use another method and call it in the hours method or if I need to add the code directly to the Hour method I've already done. An example of the StudyHours.txt file is: Aaron RODgers 12 A Tom brady 9 K philip Rivers apple c Joe Theismann 15 B So basically I need a user to be able to read the file, and correct the information they want, such as looking for apple and changing it to 9. import java.util.Scanner;import javax.swing.JOptionPane;import java.io.*;import java.util.ArrayList; public class studyTime { public static void main(String[] args) {JOptionPane.showMessageDialog(null, "Welcome to…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
COMPREHENSIVE MICROSOFT OFFICE 365 EXCEComputer ScienceISBN:9780357392676Author:FREUND, StevenPublisher:CENGAGE L
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
COMPREHENSIVE MICROSOFT OFFICE 365 EXCE
Computer Science
ISBN:9780357392676
Author:FREUND, Steven
Publisher:CENGAGE L
Files & File Systems: Crash Course Computer Science #20; Author: CrashCourse;https://www.youtube.com/watch?v=KN8YgJnShPM;License: Standard YouTube License, CC-BY
UNIX Programming (Part - 10) The File System (Directories and Files Names); Author: ITUTEES;https://www.youtube.com/watch?v=K35faWBhzrw;License: Standard Youtube License