Develop a simple gradebook management system in Java that allows professors to record and retrieve student grades from a file. The system should have the following features: 1. Add a Student Record: This feature should allow the user to input student details like Student ID, Name, and Grade. This data should be appended to a file named gradebook.txt. 2. Retrieve a Student Record: The system should retrieve a student's grade using the Student ID. 3. List All Records: Display all student records present in the file. 4. Update Student Grade: Update the grade of a student using their Student ID. 5. Delete Student Record: Remove a student record from the file using their Student ID. File Structure (gradebook.txt): Each line in the file represents a student record and is structured as: [Student ID], [Student Name], [Grade] For example: S1001,John Doe, A S1002, Alice Smith, B+

Develop a simple gradebook management system in Java that allows professors to record and retrieve student grades from a file. The system should have the following features: 1. Add a Student Record: This feature should allow the user to input student details like Student ID, Name, and Grade. This data should be appended to a file named gradebook.txt. 2. Retrieve a Student Record: The system should retrieve a student's grade using the Student ID. 3. List All Records: Display all student records present in the file. 4. Update Student Grade: Update the grade of a student using their Student ID. 5. Delete Student Record: Remove a student record from the file using their Student ID. File Structure (gradebook.txt): Each line in the file represents a student record and is structured as: [Student ID], [Student Name], [Grade] For example: S1001,John Doe, A S1002, Alice Smith, B+

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

See similar textbooks

Similar questions

JAVA LANGUAGE
C++ menu driven programs on SUPERMARKET BILLING SYSTEM has product class with data members like product no, product name, price, qty, tax, discount. Product details is stored in a binary file. A customer can purchase product and his invoice generated. Administrator can create, modify, view and delete product record.In this project, do not used graphics to keep program simple.
Need it with Visual Basic (VB) language
The ObjectOutputStream class is used to serialize an Object. The following Serialize Demo program instantiates an Employee object and serializes it to a file. Complete the code. Write codes where asked with appropriate try catch block class SDemo { } main method { } //Create an Employee object //set a name for this employee //set employee number to 1010 //create an object of file output stream //create an object of the object output stream //write Employee info to this object of output stream //close the out stream //close the file //print statement
Using Java, create a personal directory that contains a data structure for first name, last name, email address and phone number. The data structure should be able to contain the information for an unlimited number of people (depending on system resources).• The program interface should consist of a menu that provides the user with ways to (at least):▪ Add: Get data from user and add the data to the structure.▪ View: which will view the current data in the directory ▪ Edit/Update: Edit existing data ▪ Remove: Delete an entry▪ Search: which prompts the user for search criteria (program should be smart enough to know how to tell what kind of data is being searched for. Try to make this as versatile as possible). Display the data if found. If not found add the new information to the data structure (you must provide the right input for this).The program should store the data in a file so that the program can be run whenever the user wants, even after closing.• Your program should:▪ Contain…
This should be done with Visual Studio C# console app net core Thanks!
write in c++Write a program that would allow the user to interact with a part of the IMDB movie database. Each movie has a unique ID, name, release date, and user rating. You're given a file containing this information (see movies.txt in "Additional files" section). The first 4 rows of this file correspond to the first movie, then after an empty line 4 rows contain information about the second movie and so forth. Format of these fields: ID is an integer Name is a string that can contain spaces Release date is a string in yyyy/mm/dd format Rating is a fractional number The number of movies is not provided and does not need to be computed. But the file can't contain more than 100 movies. Then, it should offer the user a menu with the following options: Display movies sorted by id Display movies sorted by release date, then rating Lookup a release date given a name Lookup a movie by id Quit the Program The program should perform the selected operation and then re-display the menu. For…
If wrong answer this time will downvote it Create a class with a static main that tests the ability to resolve and print a Path: • Create an instance of a FileSystem class. • Resolve an instance of a Path interface from a directory path and filename. • Print the constructed Path with System.out.println() method. 2. Create a class with a static main that tests the ability to resolve and print a Path: • Create an array of Path class. • Instantiate instances of Path with absolute and relative paths. • Print the constructed elements of the array of Path class with System.out.println() method. 3. Create a class to test serialisation class that implements serializable, it should implement the following: • A static void method that serialises an object. • A static void method that deserializes an object. • A static main method that tests the two by moving an object from one to the other
Make a Movie Database program Project Specifications Background This application must be able to handle creating new entries in a proprietary database as well as returning searches for items in the current database. You MUST implement the following: Start the program by displaying the title of your program (you come up with a name) Have a primary prompt that allows you to enter commands (e.g. “Enter command >” ) Interpret primary commands and move to secondary states based on the commands entered. Commands you must support at the primary prompt are: a.) new entry b.) search by actor c.) search by year d.) search by runtime (in minutes) e.) search by director f.) search by title g.) quit Your secondary states must do the following: For “new entry” → Prompts to do the following: Enter title > Enter year >…
Write a C# program and name it FindPatientRecords that prompts the user for an Patient ID # (p#), reads records from Patients.txt, and displays data in the p#, PATIENT_NAME and BALANCE data records for the specified Patient ID # record. The Patients.txt file has the following three data recorded for each patient: p#, PATIENT_NAME, BALANCE. If the record does not exist, display the following error message: No records found for p# using System;using static System.Console;using System.IO;class FindPatientRecords{ static void Main() { // code here }}
The file Names.txt is located in the folder input_files within your project. The content of that file is shown in the following figure Java: import java.io.FileInputStream;import java.io.FileNotFoundException;import java.util.ArrayList;import java.util.Scanner;public class Question2 {public static void main(String[] args) throws FileNotFoundException {/*** Part a* Finish creating an ArrayList called NameList that stores the names in the file Names.txt.*/ArrayList<String> NameList;/*** Part b* Replace null on the right-hand-side of the declaration of the FileInputStream object named inputStream* so that it is initialized correctly to the Names.txt file located in the folder specified in the question description*/FileInputStream inputStream = null;Scanner scnr = new Scanner(inputStream); //Do not modify this line of code/*** Part c* Using a loop and the Scanner object provided, read the names from Names.txt* and store them in NameList created in Part a.*//*** Part d* Reorder the…
Write a program (in Java or C++), allowing to: • Create a folder "Main" • Create a file in the folder "File1" Add Read, Write permissions to "File1" Write in "File1" ● ● Read the content of "File1" ● Modify the content of "File1" Remove the Write permission of "File1" Try to write again in "File1" ● A screenshot is needed showing the results of the program execution.