Suppose there is a class named Book having an attribute named price , a default constructor and setPrice method. Fill in the missing code for the following code snippet to set the price of all the books to 30. 1. Book[] books = new _[10]; 2. 3. //Loop to set the price for each Book 4. 5. for (int i = 0; i< _ ; it) 6. { 7. = new Book(); 8. 9. books[i].setPrice(30); 10. }

Suppose there is a class named Book having an attribute named price , a default constructor and setPrice method. Fill in the missing code for the following code snippet to set the price of all the books to 30. 1. Book[] books = new _[10]; 2. 3. //Loop to set the price for each Book 4. 5. for (int i = 0; i< _ ; it) 6. { 7. = new Book(); 8. 9. books[i].setPrice(30); 10. }

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

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Hello, I am having trouble with this homework question Q1: Implement a class called Vehicle.a) A class named Vehicleb) Two private data members: brand (string), model (string), price (int).c) Accessors and Mutators function for brand, value, and price.Use following main() to test your class. int main(){Vehicle a;a.setBrand("BMW");a.setModel("X5");a.setPrice(60000);cout<<a.getBrand()<<endl; // print BMWcout<<a.getModel()<<endl; // print X5cout<<a.getPrice()<<endl; // print 60000}
Question: 2Implement the design of the Chillox and Customer classes so that the following code generates the output below:print(f"It's been a good day!. \nToday, we have already served {Chillox.order_id} customers.")print("**************************************************")outlet1 = Chillox()print("1.==========================================")print("Burger Menu:")print(Chillox.menu)print("2.==========================================")outlet1.addBurger("Chicken Burger",180,"Chicken with Cheese",200)print("3.==========================================")print("Burger Menu:")print(Chillox.menu)print("4.==========================================")c1 = Customer("Samin")c1.order = "2xChicken Burger"outlet1.placeOrderof(c1)print("5.==========================================")outlet1.addBurger('Chicken Smoky BBQ Cheese',225)c2 = Customer("Rafi")c2.setOrder("2xChicken with Cheese,3xChicken Smoky BBQ…
Assume method testQuestion() is a method in the Purchase class. Assume the Purchase class has a constructor that has parameters of name, groupCount, groupPrice, and numberBought. public Purchase testQuestion(Purchase p1, int newX) { newX = 20; this.setName("green beans"); p1.setName("corn"); Purchase p2 = new Purchase("broccoli", 5, 4.50, 10); return p2; } Referring to the above method, list the output that would be printed by Sysyem.out.println() when the following PurchaseDemo2 is executed. public class PurchaseDemo2 { public static void main(String[] args) { Purchase tomsPurchase = new Purchase("squash",4,3.50,6 ); Purchase jillsPurchase = new Purchase("carrot",8,1.99,4 ); Purchase billsPurchase;…
1. Create a class Employee with parameters name, id, designation, and basicSalary. Use appropriate datatypes and access specifiers. Use default constructor to create objects of employee. Write methods toset and get the values of parameters of employee. Write methods to find total salary of employee andto display the complete details of employee along with total salary. Create another class TestEmployeewhich creates array of n number of employees, uses appropriate set methods to set the values ofparameters of every employee. Display the details of each employee. (Total salary = basic salary + 80%of basic salary)
Question: 2 Implement the design of the Purchaser and AarongProducts classes so that the following code generates the output below: #Write your code here p1 = Purchaser('Alex Light') print('1.===============================') print(p1) product1 = AarongProducts('Decor', 'Photo-Frame') print('2.===============================') print(product1) print('3.===============================') print(AarongProducts.products) print('4.===============================') AarongProducts.include_products('Souvenirs',['Brass-Flowervase 2170', 'Terracotta-Vase 3500']) print(f'Updated Item List:\n{AarongProducts.products}') print('5.===============================') product2 = AarongProducts('Souvenirs', 'Terracotta-Vase', 2) print(product2) print('6.===============================') p1.create_invoice(product1, product2) print('7.===============================') product3 = AarongProducts('Decor', 'Candles', 5) print(product3) print('8.===============================') product4 =…
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Modify the Car class example and add the following: A default constructor that initializes strings to “N/A” and numbers to zero. An overloaded constructor that takes in initial values to set your fields (6 parameters). accel() method: a void method that takes a double variable as a parameter and increases the speed of the car by that amount. brake() method: a void method that sets the speed to zero. To test your class, you will need to instantiate at least two different Car objects in the main method in the CarDemo class. Each of your objects should use a different constructor. For the object that uses the default constructor, you will need to invoke the mutator methods to assign values to your fields. Invoke the displayFeatures() method for both objects and display the variables. Demonstrate the use of the accessor method getColor() by accessing the color of each car and printing it to the console. Use the method accel to increase the speed of the first car by 65 mph. Use…
this is the whole problem i did 1 to 3 im stuck at 4 Create a class called Student, with the following attributes/variables:a. studentName (String)b. studentNumber (int)sc. regYear(long)d. faculty(String)e. department(String)2. Add the following methods in Student:a. accessors and mutators for all variablesb. toString methodi. Formulate your toString so that it only shows studentName,studentNumber and faculty3. Create a class called MyFriends, with the following attributes variables:a. studentArray(Student[])4. Add the following methods in MyFriends:a. fillArrayi. Using scanner ask how many students does the user want to inputii. Capture user input for all of his friends(Of course we are assuming all your friends would be similarUWC students, go ask around and meet new friends, alsopreferably not in the same Computer Science department … ifpossible … only if possible)b. maini. Call the fillArray methodii. Count how many Computer Science studentsiii. If half or more students are…
This is for python class, so please answer in python 9.12 LAB: Product class In main.py define the Product class that will manage product inventory. Product class has three attributes: a product code, the product's price, and the number count of product in inventory. Implement the following methods: A constructor with 3 parameters that sets all 3 attributes to the value in the 3 parameters set_code(self, code) - set the product code (i.e. SKU234) to parameter code get_code(self) - return the product code set_price(self, price) - set the price to parameter price get_price(self) - return the price set_count(self, count) - set the number of items in inventory to parameter count get_count(self) - return the count add_inventory(self, amt) - increase inventory by parameter amt sell_inventory(self, amt) - decrease inventory by parameter amt
Java Questions - (Has 2 Parts). Based on each code, which answer out of the choices "A, B, C, D, E" is correct. Each question has one correct answer. Thank you. Part 1 - 7. Which is possibly a composite class? class Seed { ... }class Fruit { Seed s1 = new Seed(); }class Apple extends Fruits { ... }class Orange extends Apple { ... }class ApplePie { ApplePie a1 = new ApplePie(); } A. FruitB. AppleC. ApplePieD. OrangeE. Seed Part 2 - 8. Given the following code, the output is __. class Apple { int x = 5; }class Orange { int y = 6; }class Tangerine { int z = 7; } class Banana { Apple a1 = new Apple(); Orange o1 = new Orange(); Tangerine t1 = new Tangerine(); public int show() { return a1.x + o1.y + t1.z; }} public class Sample { public static void main(String[] args) { Banana b1 = new Banana(); System.out.println(b1.show()); }} A. 5B. 6C. 7D. 18E. 5+6+7
Write a class that represents a player in a game. The player should have a name, password,experience points, an inventory array of four strings, and a location x,y. Your class shouldhave mutator and accessor methods for all variables. For example: setName(), getName(). Itshould have a suitable display method. Mutators and accessors should be public but allvariables should be private. To implement get inventory, use string * getInv(); Use the scoperesolution operator to implement larger methods such as display(). Use in class methods forshorter methods such as setName(), getName(). (in C++)Example:void setName(string name){this->name = name;}string *getInv();...string* player::getInv(){return inventory;}Note that in the above method setName “this->” is required for disambiguation. If writtenvoid setName(string n){name = n;}“this->” is not required.Write a test program that creates three players and displays them.Example Output:This program generates three player objects and…
This program should be written in Java: Hamburger Joint: 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 attributes except 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 no parameters that adds cheese to the burger and increases the price by 75 cents superSizeIt - this method has no parameters and adds a patty to the burger and increases the price by 1.50 addToppings - this method would present the user with at least five toppings (your choice) stored in an array of String objects. If the user indicates the wants…