Given the following custom class myClass, which of the following statements are TRUE? Select all that apply. class myClass: _init_(self, code, name): self.code - code self.name= name self.roster = [] def def enrol(self, 1st: list[str]) -> None: ** Add each element of <1st> to the roster once. for item in 1st: if item not in self.roster: self.roster.append(1st) O The attribute roster cannot be defined, since it's not a parameter of the initializer. O The method enrol is correct. O The method enrol is incorrect because it doesn't properly add elements to the roster. O The method enrol is incorrect because it doesn't properly ignore duplicate string elements. O The method enrol is incorrect because it doesn't return anything. O The initializer is incorrect as it creates more attributes than are passed. O The command print(c.roster) prints the list roster, where c is an instance of myClass.

Given the following custom class myClass, which of the following statements are TRUE? Select all that apply. class myClass: _init_(self, code, name): self.code - code self.name= name self.roster = [] def def enrol(self, 1st: list[str]) -> None: ** Add each element of <1st> to the roster once. for item in 1st: if item not in self.roster: self.roster.append(1st) O The attribute roster cannot be defined, since it's not a parameter of the initializer. O The method enrol is correct. O The method enrol is incorrect because it doesn't properly add elements to the roster. O The method enrol is incorrect because it doesn't properly ignore duplicate string elements. O The method enrol is incorrect because it doesn't return anything. O The initializer is incorrect as it creates more attributes than are passed. O The command print(c.roster) prints the list roster, where c is an instance of myClass.

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

CRS Given the following custom class myClass, which of the following statements are TRUE? Select all that apply: Esignments class myClass: uizzes def init_(self, code, name): self.code self.name = name self.roster- [] code odules def enrol (self, 1st: list[str]) -> None: "" Add each element of to the roster once. for item in 1st: if item not in self.roster: self.roster. append (1st) O The attribute roster cannot be defined, since it's not a parameter of the initializer. O The method enrol is correct. O The method enrol is incorrect because it doesn't properly add elements to the roster. A The metnod enrol is incorrect because it coesr't properly ignore duplicate string elements, O The method enrolis incorrect ause it sn't returm anything C The initializer is incorrectas it creates more attrisutes than are passed. The command printc roster) prints the list roster, where c is an instance of myClass. The command print(c roster prints a memory address. as repr or strill brert defined.
Task 4. Utility classes Implement a Menu-Driven program of ArrayList class using the above scenario and perform the following operations. Create an object of ArrayList class based on the scenario with explanations of the method Create a method that will allow inserting an element to ArrayList Class based on the scenario. The input field must be validated as Create a method to delete specific elements in the ArrayList with explanations of the method
Exercise 2. Create a Book class where: Each book contains the following information: book title book Author name, barcode (as fong integers), and book topic. o Implement an appropriate constructor(s) and all necessary get/set methods. Test Book class: o Create diffcrent book objects (at least 5 hooks) and store them in a LinkedList sorted by book barcode value Generate a unique random integer value for the barcode. Iterate through the LinkedList and print out the books' details O Create a second LinkedList object containing a copy of the above LinkedList, but in reverse order.
Using java Hamburger ClassWrite a Hamburger class with the following six attributes:• bun - the type of bun the burger will be on• patties - the number of patties on the burger• cheese - whether or not the burger will have cheese• price - the price of the burger• toppings - an array of five toppings; it will need to start empty Write getters/setters for all attributesexcept the toppings array.Your constructor should create a single on white with no cheese and no toppings with a price of $2.99.Your class should include the following methods in this order, please: addCheese - this method has noparameters that adds cheese to the burger and increases the price by 75 centssuperSizeIt - this method has no parameters and adds a patty to the burger and increases the price by 1.50addToppings - this method would present the user with at least five toppings (your choice) stored in an array of Stringobjects. If the user indicates the wants the item, store the String in the toppings array. There…
Create a class called AQlinyear. The class structure is shown as below But, you. can extend the structure without changing the members listed as below. AQlinyear -_aqiarray[12]: int - _city: string +AQlinyear(char* string) +averageQuality(): double +worstQuality(): int +bestQuality(): int +report(): void (2) code in main() is int main(int argc, char* argv) { AQlinyear hz2021("aqi.txt","Hangzhou in 2021 h22021.report(): return 0; c++ hurry
Given the following custom class myClass ,which of the following statements are TRUE? Select all that apply. class myClass: def _init__(self, code, name): self.code = code self.name = name self.roster = 0 def enrol(self, 1st: list[str]) -> None: """ Add each element of to the roster once. I" II II for item in lst: if item not in self.roster: self.roster.append(lst) n The attribute roster cannot be defined, since it's not a parameter of the initializer. The method enrol is correct. n The method enrol is incorrect because it doesn't properly add elements to the roster. The method enrol is incorrect because it doesn't properly ignore duplicate string elements. The method enrol is incorrect because it doesn't return anything. The initializer is incorrect as it creates more attributes than are passed. n The command print(c.roster) prints the list roster, where c is an instance of myClass. n The command print(c.roster) prints a memory address, as _repr__ or __str__ aren't defined. ---
Creates a class called CourseClass with 6 attributes: a. name: the course name; b. maxStud: a maximum number of Student into the CourseClass; c. nbStud: the current number of Student into the CourseClass. When a CourseClass is created, the number nbStud is equal to 0; d. Student Stud[]: an array of Student. The size of this array is equal to maxStud; e. CourseTeacher: the Teacher (of type Teacher) responsible of this course; f. LabTA: The TA (of type TA) responsible of the course's Lab; Add the following methods: e. Constructor: able to create a CourseClass with maximum 10 Students; f. overload the operator += (Student): able to add a Student to the CourseClass. The Student will be added to the Stud array. You need to be sure that an available space exits (uses the function assert); g. find(StudentName): this method allows to find a Student by his Name. If it exists, the Student will be displayed, else, am error message will be displayed; h. display: this method aims to display all…
The class diagram below shows an Order class that "has a" Customer and zero or more Items. Order class should contain private Customer m_cust; private ArrayList<Item> m_items; public Order(Customer cus t) public void additem(Item i) public String toString() Item class should contain private String m_desc private int m_qty private double m_price public Item(String des c, double price, int qty) public String toString() Customer class should contain 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. When you have completed the Order, Customer, and Item classes, running the Main program should produce the following output: Order for Smith, Tom Order Items: Greeting Card: 1 at 1.5 Baseball Glove: 1 at 54.0 Notebook: 3 at 2.5 public class Main{ public static void…
Create a class: "Palindrome" with private data members: upper limit (int), lower limit (int) and parameterized constructor, which initializes the values of both data members. Apart from initialization, this constructor also displays the count of palindrome numbers from upper_limit to lower_limit. [Example: upper limit:50, lower_limit:10, count of palindrome numbers is: 4(11 , 22, 33 and 44), also make sure the value of upper_limit should be greater than lower limit].
Dynamic Apex: Write test class for this apex code(Not required the output) You are working on the project in which you have to create the apex code in which your task is to define the objects dynamically by using the method argument which is api name in string and a map of string, string as a key value pair. Class Code: public static void modifySobjectData(String str , Map mapofString) { //Retrive the type of Sobject by using the getGlobalDescribe Schema.SobjectType targetType = Schema.getGlobalDescribe().get(str); //Initalize the Object Sobject newobject = targetType.newSobject(); for (String s :mapofString.keySet() { newobject.put(s, mapofString.get(s)); } System.debug('newObject' + newobject); //Perform the DML if(targetType != null) insert newobject; } }
Dynamic Apex: Write test class for this apex code(Not required the output) You are working on the project in which you have to create the apex code in which your task is to define the objects dynamically by using the method argument which is api name in string and a map of string, string as a key value pair. Class Code: public static void modifySobjectData(String str , Map mapofString) { //Retrive the type of Sobject by using the getGlobalDescribe Schema.SobjectType targetType = Schema.getGlobalDescribe().get(str); //Initalize the Object Sobject newobject = targetType.newSobject(); for(String s :mapofString.keySet(O) { newobject.put(s, mapofString.get(s)); } System.debug('newObject' + newobject); //Perform the DML if(targetType != null) insert newobject; } }
#ClubMember classclass ClubMember: #__init_ functiondef __init__(self,id,name,gender,weight,phone):self.id = idself.name = nameself.gender = genderself.weight = weightself.phone = phone #__str__ functiondef __str__(self):return "Id:"+str(self.id)+",Name:"+self.name+",Gender:"+self.gender+",Weight:"+str(self.weight)+",Phone:"+str(self.phone) #Club classclass Club: #__init__ functiondef __init__(self,name):self.name = nameself.members = {}self.membersCount = 0 def run(self):print("Welcome to "+self.name+"!")while True:print("""1. Add New Member2. View Member Info3. Search for a member4. Browse All Members5. Edit Member6. Delete a Member7. Exit""") choice = int(input("Choice:")) if choice == 1:self.membersCount = self.membersCount+1id = self.membersCountname = input("Member name:")gender = input("Gender:")weight = int(input("Weight:"))phone = int(input("Phone No.")) member = ClubMember(id,name,gender,weight,phone)self.members[id] = memberelif choice == 2:name = input("Enter name of…