Mapping this class diagram to a relational database during the design phase of the Software development (don't draw ER diagram, Just tables) UserBOOKLibrationвооK IDBook TitileName Book OUTHERUser NameUser NameUser IDPasswordUser AddressaddAdd Book()borrowPasswordDelete Book()Phone NumberdeleteDelete Book()Open AcountAdd User()Register New User()Delete User()Borrow Book()Feed Back()Acount1Renew Book()User NameUser PasswordStudentStaffStudent Number

Relational database is the table representation of the database. In Relational database, each entity…

Answered: Mapping this class diagram to a…

Mapping this class diagram to a relational database during the design phase of the Software development (don't draw ER diagram, Just tables)

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter13: File Input And Output

Section: Chapter Questions

Problem 3GZ

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if [ $(id -u) -eq 0 ];then read -p "enter username:" username read -s -p "enter password:" password egrep "^$username"/etc/passwd>/dev/null if [ $? -eq 0];then echo "$username exists!" exit 1 else pass=$(perl -e 'print crypt($ARVG[0], "password")' $password) useradd -m -p "$pass" "$username" [ $/ -eq 0 ] && echo "user has been added to system!" || echo "Failed to add a user!" fi else echo "Only root may add to the system" exit 2 fi * recheck the code if this is valid syntax for account management or suggest /do another user account management shell script that runs in unix terminal and please attache the output at the end
if the user click on create account or on login with empty text info (without entering the desired info like name and DOB before clicking on create account for example ) the program crashes, can you figure out why and fix it import tkinter as tkfrom datetime import datetime, timedeltaclass ATM: def __init__(self): self.accounts = {} def create_account(self): # Get user inputs first_name = first_name_entry.get() last_name = last_name_entry.get() dob = dob_entry.get() address = address_entry.get() debit_card = debit_card_entry.get() while len(debit_card) != 16 or not debit_card.isdigit(): debit_card = input("Invalid debit card number. Enter debit card number (16 digits): ") pin = pin_entry.get() while len(pin) != 4 or not pin.isdigit(): pin = input("Invalid pin. Enter 4-digit pin: ") # Create account and update GUI self.accounts[debit_card] = {"first_name":…
Review the following program that extracts the email server domain name. >>> data = 'From stephen.marquard@uct.ac.za Sat Jan 5 09:14:16 2008 ' >>> atpos = data.find('@') >>> print(atpos) 21 >>> sppos = data.find(' ',atpos) >>> print(sppos) 31 >>> host = data[atpos+1 : sppos] >>> print(host) 1. Adapt the program to extract the user name (stephen.marquard) and Copy+Paste the code in the answer2. Run the adapted program and include a full window screenshot with system time and date in the answer.
voting application app c# it would ask if the person would like to login as a admin or voter if admin 1. Add/Delete Candidate and automatically generate candidate ID. 2. Add/Delete Voters and automatically generate voter ID. 3. ask for an user and password if voter 1. it would ask them to login and register 2. Allow voters to vote using registered ID and an ID which has not voted yet. 3. When voter ID is deleted, its vote will also be deleted.
The following shell script adds entries to a file named journal-file in your home directory. This script helps you keep track of phone conversations and meetings. $ cat journal # journal: add journal entries to the file # $HOME/journal-file file=$HOME/journal-file date >> $file echo -n "Enter name of person or group: " read name echo "$name" >> $file echo >> $file cat >> $file echo "----------------------------------------------------" >> $file echo >> $file What do you have to do to the script to be able to execute it? Why does the script use the read builtin the first time it accepts input from the terminal and the cat utility the second time?
Computer Science Create a user named new-user. Ensure this user has a home directory at the default location of /home/new-user and uses the default shell /bin/bash in linx mint
Question 1BackgroundYou are required to write program that will read a file, encrypt the content of the file, and thencreate a new file that contains the encrypted content.Your program will make use of the following classes:Page – This class will be used to represent the content of the file that was read.PageManager – This class will be used to read page content from and to a file.APM11A1Encryptor – This class will be used to encrypt the content of a file using the Caesar-Ciphermethod.APM11A1 - AdvancedProgrammingAdvancedAPM11A1Encryptor – This class will be used to encrypt the content of a file using theExclusive-OR method.Caesar CipherCaesar was a Roman military and political leader during 100BC to 44BC. In order to make thecommunication channels secure during war, he invented an encryption technique called the CaesarCipher. The cipher requires a sentence and a key to function properly. Each character in the sentencewas then shifted according to the value of the key. Computer…
When I press 1 and add a contact then when i press number 2 to browse the name , The name wouldn't be added to the file . But when i press 1 and add a contact and then i press 7 return the name can be added to the file . Would you please check what's went wrong in the program. Thanks. #include<iostream>#include <fstream>#include<string>using namespace std;#define M 100int count=0;struct AddressBook{string FullName;int Birthday;string Address;string Email;int PhoneNumber;}Person [M];void WriteToFile();void add();void browse();void searchByName();void searchByBirthday();void removeContact();void order();int main(){fstream file;file.open("Contact'sBook.txt");int choice;do{cout << "Please Enter Your Choise: \n";cout << " 1- Add New Person\n 2- Browse\n 3- Search By Full Name \n 4-Search By Birthday \n 5-Remove a Person" << "\n 6- Alphabetical Order \n 7- Exit\n";cin >> choice;switch(choice){ case 1: add(); break;case 2: browse();break;case 3:…
write java code The wise university like to manage Student records uSig a desktop application. The program's main Window includes two options (can be implemented Lßing buttons Ot Similar components). These options are: add a new record and display search and edit records. To implement such an application. you need to implement the following: Create three frames, one as the main application frame Frame) and two hidden frames (add New Record and Display, search and Edit record) that are displayed only through events implemented the mainframe (two buttons). The components Of the secondary windows are follows: Add New Record: use proper components to allow to add the fo"owing information for each student (Name. Gender, University ID. National ID. Nationality, Tawjihi Graduate Year, Major, Academic Department, and Faculty). Note; are not always the right option user inputs When there options for some inputs. Display, and Edit Record: use Components to the user to display the students'…
We want to build an address book that is capable of storing name, Birthday & Email & address & phone number ofa person. Address book provides functionality in the form of a menu. The feature list includes:• Add – to add a new person record• Delete – to delete an existing person record by name• Search – to search a person record by name .. Sort - to sort the file after adding a new person record. · Exit – to exit from application
fix python code def updateDeleteTask(request,taskID): if "Update" in request.POST: return HttpResponse(f"Update Task with ID={taskID}") if "Delete" in request.POST: return HttpResponse(f"Delete Task with ID={taskID}") else: return HttpResponse("Invalid")
Write a php page(login.php) that reads a user ame and a password. When the user presses the login button, the username and password will be stored in an ACCESS database. Also the username and password will be stored in a text file named: logos.txt