Given the following information abo ut a carpool program that uses a system to match up potential drivers with potential passengers, answer the questions below. Entities: passengers (search for drivers based on personal preferences) drivers (post itinerary information) Data store: D1: Passenger files D2: Driver files Processes: 1. Drivers provide itinerary information, which is to be stored at D2 2. Potential passengers can input his/her preference, which is to be stored at D1 3. Match the passenger preference with drivers’ itinerary information 4. A list of potential drivers, as a result of the matching algorithm, will be formatted on the web page, to be seen by the passengers 1) Create a context diagram for the carpool system 2) Draw a logical data flow diagram (Diagram 0)

Given the following information abo ut a carpool program that uses a system to match up potential drivers with potential passengers, answer the questions below. Entities: passengers (search for drivers based on personal preferences) drivers (post itinerary information) Data store: D1: Passenger files D2: Driver files Processes: 1. Drivers provide itinerary information, which is to be stored at D2 2. Potential passengers can input his/her preference, which is to be stored at D1 3. Match the passenger preference with drivers’ itinerary information 4. A list of potential drivers, as a result of the matching algorithm, will be formatted on the web page, to be seen by the passengers 1) Create a context diagram for the carpool system 2) Draw a logical data flow diagram (Diagram 0)

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter7: File Handling And Applications

Section: Chapter Questions

Problem 6PE

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You are implementing a simple file system for an operating system for managing files and folders; similar to Windows or UNIX. Your design should follow the following guidelines i) The entire file system is represented by an object which is the reference to the root folder ii) Any folder in the file system may contain two types of items, folders (subfolder) and files and you want to treat both in the same way iii) possible operations: getName, getPermission, listItem (1 point) What is the most appropriate design pattern?
You are implementing a simple file system for an operating system for managing files and folders; similar to Windows or UNIX. Your design should follow the following guidelines i) The entire file system is represented by an object which is the reference to the root folder ii) Any folder in the file system may contain two types of items, folders (subfolder) and files and you want to treat both in the same way iii) possible operations: getName, getPermission, listItem What is the most appropriate design pattern? Draw the class diagram, and make it clear what are the main components and what are their roles, and show the relationship between classes? write code of the main components in your design? Note : this is a design Pattern Question Use java To solve this question please I need a fast good answer.Thanks a lot in advance.
An objective of this task is to implement your own simple method of auditing the database activities.It is strongly recommended to connect to MySQL either through command line interface mysql or graphical user interface MySQL Workbench and process a script file dbdrop.sql and immediately after that the scripts dbcreate.sql and dbload.sql to refresh a sample database csit115.Download a file solution3.sql and insert into the file the implementations of the following actions.You must connect as a user root with a password csit115.Your implementation must directly follow a comment with a specification of a subtask.(1) First, the script makes a relational table that contains a general log empty.(2) Next, the script sets the appropriate values of the variables to save a general log in a relational table and to start recording a general log from now.(3) Next, the script makes a database csit115 a default database, it stops recording a report, it executes a script file updates.sql, and it…
design pattern question :- You are implementing a simple file system for an operating system for managing files and folders; similar to Windows or UNIX. Your design should follow the following guidelines i) The entire file system is represented by an object which is the reference to the root folder ii) Any folder in the file system may contain two types of items, folders (subfolder) and files and you want to treat both in the same way iii) possible operations: getName, getPermission, listItem What is the most appropriate design pattern? Draw the class diagram, and make it clear what are the main components and what are their roles, and show the relationship between classes? write code of the main components in your design?
3. Using the following command: > library(T SA) > data(days) we can retrieve a data file named days in R. The data file contains accounting data from the Winegard Co. of Burlington, Iowa. The data are the number of days until Winegard receives payment for 130 consecutive orders from a particular distributor of Winegard products. (The name of the distributor must remain anonymous for confidentiality reasons.) The time series contains outliers that are quite obvious in the time series plot. (a) Estimate the parameters of an ARMA(1,1) model for these data. (b) Estimate the parameters of an MA(2) model for these data. Which model is a better model for this data set?
A new seat booking system is required to help users reserve a seat based on the following requirements: First or Standard Class Window and/or Aisle. With or Without Table. Seat Price. When a suitable match is found, the user (identified by their eMail) should be able to reserve the seat. Seat reservations may also be cancelled. The seat data should be modelled in a file seats.txt that will contain the seat data and any reservations, though initially every seat should be unreserved. Upon application launch, the data should be loaded into appropriate data structures and upon application exit, the data should be saved back to the file. NOTE: The seats.txt file is attached in the images. The format of each seats’s data is as follows: seatNum seatClass isWindow isAisle isTable seatPrice eMail. You are then required to produce a console application (using Java) that is driven by a repeating main menu (Attached in the image) with appropriate instructions and guidance throughout. Menu…
A new seat booking system is required to help users reserve a seat based on the following requirements: First or Standard class Window and/or Aisle With or Without Table Seat Price When a suitable match is found, the user (identified by their eMail) should be able to reserve the seat. Seat reservations may also be cancelled. The seat data should be modelled in a file seats.txt that will contain the seat data and any reservations, though initially every seat should be unreserved. Upon application launch, the data should be loaded into appropriate data structures and upon application exit, the data should be saved back to the file. NOTE : The seats.txt file (i.e. Appendix A) is provided on attached images. You should download the file to a new folder called data on your M: drive. The format of each seats’s data is as follows : seatNum seatClass isWindow isAisle isTable seatPrice eMail See Appendix A for further explanation of the file seats.txt You are then required to produce…
//19. selectMenuChangeEventHandler//a. Dependencies: getUserPosts, refreshPosts//b. Should be an async function//c. Automatically receives the event as a parameter (see cheatsheet)//d. Defines userId = event.target.value || 1; (see cheatsheet)//e. Passes the userId parameter to await getUserPosts//f. Result is the posts JSON data//g. Passes the posts JSON data to await refreshPosts//h. Result is the refreshPostsArray//i. Return an array with the userId, posts and the array returned from refreshPosts://[userId, posts, refreshPostsArray] This is what I have but it fails help please const selectMenuChangeEventHandler = async (e) => { let userId = e?.target?.value || 1; let posts = await getUserPosts(userId); let refreshPostsArray = await refreshPosts(posts); return [userId, posts, refreshPostsArray];}
You are given a file called “std” and composed of “Number, Name, Address”fields/attributes. (You can define the type of fields by yourself) Write an algorithm thatmakes “insert, delete, update and retrieve”, processes on the records in the file. “Number”field is the key of each record.Here is the template of report:Steps Actions1 Name of the report and date2 Author of report3. Literature review4. Your contribution5 Explanation algorithm and sub algorithms6 Summary7. Future advice8. References
You are given a file called “std” and composed of “Number, Name, Address” fields/attributes. (You can define the type of fields by yourself) Write an algorithm that makes “insert, delete, update and retrieve”, processes on the records in the file. “Number” field is the key of each record.Here is the template of report:Steps Actions1 Name of the report and date2 Author of report3. Literature review4. Your contribution5 Explanation algorithm and sub algorithms6 Summary7. Future advice8. References
Exercise 3 – Wildcards example Write a batch program called EX3.BAT that lists all files which start with the letter M and have the extension of .EXE on drive C. It should search from the root down through all the subdirectories. If you want to terminate a batch file during execution, press Ctrl + C. Exercise 4 – Wildcards example Write a batch program called EX4.BAT that lists all files that match any of the following criteria within the root of the C drive and down through its subdirectories: a) Files with an extension of COM and have 4 letters in the filename. g., chcp.com mode.com etc. b) EXE files whose 2nd letter is I g., WINHELP.EXE DIAGS.EXE etc. Make sure the output does not scroll up the screen too quickly. Put a pause command in between parts a) and b) Exercise 5 – Wildcards example Write a batch program called EX5.BAT that lists all files that match any of the following criteria within the Windows folder and down through its sub directories: a) Files that have an…
Which example uses the SOLID SRP principle correctly and does not violate it? (A or B) A. public class DatabaseParser { ParseDirectoryMapFile(); // parse directory map fileParsePasswordFile(); // parse user fileParseReviewDataFile(); // parse review data fileParseTeamFile(); // parse team CalculateGrade(); CalulateRelativeGrade(); } B public class DatabaseParser { ParseDirectoryMapFile(); // parse directory map fileParsePasswordFile(); // parse user fileParseReviewDataFile(); // parse review data fileParseTeamFile(); // parse team file} // seperately with the following: public class Calculator{ CalculateGrade(); CalulateRelativeGrade(); }