what is best way to represent below one to one relationship in the relational model? A)combine student and preference relation and select the combination of studentno and prefno as the primary key of new relation B)include studentno as a forein key in the preference relation C)combine student and preference relation and select studentno as the primary key of new relation D)include prefno as a foreign key in the student relation

what is best way to represent below one to one relationship in the relational model? A)combine student and preference relation and select the combination of studentno and prefno as the primary key of new relation B)include studentno as a forein key in the preference relation C)combine student and preference relation and select studentno as the primary key of new relation D)include prefno as a foreign key in the student relation

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 3PE

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> > ©Citizen ©Company model model • licenseNo: String e location: String expiryDate: Date Company(int, String,String,String,Date) • getLicenseNo() String • setLicenseNo(String).void • getLocation() String • setlocation(String) void • getExpiryDate().Date • setExpiryDate(Date).void • toString() String nationalNo: int - bDate: Date nationality: String FCitizen(int,String,int,Date,String) • getNationalNo() int • setNationalNo(it) void • getbDate():Date • setbDate(Date):void • getNationality() String • setNationality(String) void toString() String > ©Customer model -bookings • book • cance id: int name: String FCustomer(int,String) • removeBookedObject(int).void • getBookings() ArrayList • setBookings(ArrayList)void • getid()int • setid(int).void • getName():String • setName(String) void • getTotalPayment() double toString() String -booki -customers <
Main.java - Notepad A learn.zybooks.com/zybook/MCLACSC1328CohenSpring2022/chapter/5/section/2 Main.java - Notepad O Main.java - Notepad = zyBooks My librar Order, Item, Customer File Edit Format View Help File Edit Format View Help The class diagram below shows an Order class that "has a" Customer and zero or more Items. Order Item 0.* private Customer m_cust; private ArrayList m_items; private String m_desc private int m_qty private double m_price public Order(Customer cust) public void additem(Item i) public String toString() public Item(String desc, double price, int qty) public String toString) 1.1 Customer private String m_first; private String m_last; public Customer(String first, String last) public String toString) Please create the Order, Customer, and Item classes shown above. I have provided you with a read only Main class that you can use to test your code (you can download it below). You can use this to test your code, but there is no need to submit it to zyBooks. I will…
java programming Create a class called Citizen with the following attributes/variables:a. String citizenIDb. String citizenNamec. String citizenSurnamed. String citizenCellNumbere. int registrationDayf. int registrationMonthg. int registrationYear2. Create a class called Node with the following attributes/variables:a. Citizen citizen b. Node nextNode 3. Create a class called CitizenRegister with the following attributes/variables:a. Node headNodeb. int totalRegisteredCitizens4. Add and complete the following methods in CitizenRegister:a. head()i. Returns the first citizen object in the linked listb. tail()i. Returns the last citizen object in the linked listc. size()i. Returns the totalRegisteredCitizend. isEmpty()i. Returns the boolean of whether the linked list is empty or note. addCitizenAtHead(Node newNode)i. Adds a new node object containing the citizen object information before the headNodef. addCitizenAtTail(Node newNode)i. Adds a new node object containing the citizen object…
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Java OOP PLEASE DO IT URGENT A social networking website hires you to meet the following requirements: User can create their profile User can check for mutual friends User can add new friends User can delete friends Display user’s profile Solution Guidelines: Create a class Profile having name, emailId, city , country, friendlist[] ( Keep the fields private) Profile class will contain following methods: createProfile(String name , String emailId, String city, String country): allow user to set his information addFriends(Profile profile): sends request, if a person accepts the request add the person object into friendlist[] Note: Achieve Method Overloading keep the parameters as (Profile profile , String Message) giving Access to user to send request with a personalized message. removeFriend(Profile profile):can remove a friend from the friendlist showFriends(): display the friendlist search(Profile profile):searches…
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In python program some issue find the issue class Node: def __init__(self,data): self.wait = data; self.next = None; class CreateList: def __init__(self): self.head = Node(1); self.tail = Node(2); self.tail.next = self.tail; def addAtStart(self,data): newNode = Node(data); if self.head.data is None: self.head = newNode; self.tail = newNode; newNode.next = self.head; else: newNode.next = temp; self.head = newNode; self.tail.next = self.head; def display(self): current = self.head; if self.head is None: print("List is empty"); return; else: print(current.data), while(current.next != self.head): current =…
Edit Metadata 1 writefile Hi4Q3. py 2 ## uncomment the above Line after you finish your code, in order to generate the Python submission file. 4 5 = This module defines the CashRegister Class that was discussed in class. 6 ## A simulated cash register that tracks the item 7 = count and the total amount due. 9 class CashRegister: ## Constructs a cash register with cleared item = count and total. 10 11 12 def init_(self) : self. itemcount = 0 self. totalprice = 0.e 13 14 15 16 ## Adds an item to this cash register. = @param price the price of this item 17 18 19 20 21 %23 def additem(self, price) : self. itemcount = self. itemcount + 1 self. totalPrice - self._totalPrice + price 22 %3D 23 ## Gets the price of all items in the current # sale. * @return the total price 24 25 26 27 def getTotal(self) : return self._totalPrice 28 29 30 ## Gets the number of items in the current sale. + @return the item count def getcount (self) : return self. itemcount 31 32 33 34 35 36 37 *# Clears the item…
Python This is what I have class linkedQueue: class _Node: def __init__(self, value, next = None): self._data = value self._next = next def get_data(self): return self._data def set_data(self, value): self._data = value def get_next(self): return self._next def set_next(self, nodetopoint = None): self._next = nodetopoint def __init__(self): self._head = None self._tail = None self._size = 0 def enqueue(self, itemValue): # Inserts a new item (the data of the item is set to itemValue) at the end of the queue and returns True. If unable to insert the item (due to error) return false. node = self._Node(itemValue) if self._head is None: self._head = node else: self._tail._next = node self._tail = node self._size += 1 return True def dequeue(self): # Removes the item…
Python please. Starter code: from player import Playerdef does_player_1_win(p1_hand, p2_hand):#given both player-hands, does player 1 win? -- return True or Falsedef main():# Create players# Have the players play repeatedly until one wins enough timesmain() #you might need something hereclass Player: # player for Rock, Paper, Scissors# ADD constructor, init PRIVATE attributes# ADD method to get randomly-generated "hand" for player# ADD method to increment number of wins for player# ADD method to reset wins to 0# ADD getters & setters for attributes
function removeErrMsgs() { var errMessages = document.getElementsByClassName('msg');for (let msg of errMessages) {msg.innerHTML = "";}}function validateValues() {var toBeReturned = true;removeErrMsgs();var fname = document.getElementById("fname").value;if (fname.length > 30) {document.getElementsByClassName('msg')[0].innerHTML = "First name can not be longer than 30 characters";toBeReturned = false;} var lname = document.getElementById("lname").value;if (lname.length > 30) {document.getElementsByClassName('msg')[1].innerHTML = "Last name can not be longer than 30 characters";toBeReturned = false;} var phone = document.getElementById('num').value;if (phone.length > 8) {document.getElementsByClassName('msg')[2].innerHTML = "Phone number can not be greater than 8 numbers";toBeReturned = false;} var items = document.getElementById('items').value;if (items > 4 || items < 2) {document.getElementsByClassName('msg')[3].innerHTML = "Item numbers should be between 1 and…