OOP Homework Inheritance (PYTHON) 1. Given two classes as described in Customer.py (attached) Revise the class using inheritance to simplify the codes and to remove repetition of codes. Package-delivery services, such as FedEx®, DHL® and UPS®, offer a number of different shipping options, each with specific costs associated. Create an inheritance hierarchy to represent various types of packages. Output: Sender: Ellen Abberton WR10 Recipient: Jane Abbey Dore, HR2 Cost: £4ee Sender: Mike Agglethorpe DL8 Recipient: Andy Acton Bridge, CW8 Cost: £680 Sender: Andy Acton Bridge Cw8 Recipient: Luke Abingworth, RH20 Cost: £61e

OOP Homework Inheritance (PYTHON) 1. Given two classes as described in Customer.py (attached) Revise the class using inheritance to simplify the codes and to remove repetition of codes. Package-delivery services, such as FedEx®, DHL® and UPS®, offer a number of different shipping options, each with specific costs associated. Create an inheritance hierarchy to represent various types of packages. Output: Sender: Ellen Abberton WR10 Recipient: Jane Abbey Dore, HR2 Cost: £4ee Sender: Mike Agglethorpe DL8 Recipient: Andy Acton Bridge, CW8 Cost: £680 Sender: Andy Acton Bridge Cw8 Recipient: Luke Abingworth, RH20 Cost: £61e

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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Map each of the keywords on the left to the statement that describes it the best. Inheritance Class Object Polymophism Instance variable [Choose ] ✓ It is any variable that does not represent a living being. It allows properties and functions to be passed to another object when an object is deleted. It represents a blue print of an object. It is like a global variable that can be accessed in all functions of a program. It is a category to organize variables and objects in groups. It is an instance of a class. It is a programming command with a special meaning. Classes can acquire properties and functions from other classes. It is a property inside that class that exists throughout the lifetime of an object. It is used to define the relationship between classes. It is a variable of a primitive type. It is a variable that can store values of multiple types. It allows a variable of a super class type to be assigned an instance of a subclass type. It is used to describe that a class…
Classes in the same inheritance hierarchy typically belong in the same package. Select one: True False
(a) Create an inheritance hierarchy of Rodent: Mouse, Gerbil, Hamster, etc. In the base class, providemethods that are common to all Rodents, and override these in the derived classes to perform differentbehaviors depending on the specific type of Rodent. Create an array of Rodent, fill it with different specific types of Rodents, and call your base-class methods to see what happens. (b) Create a Cycle class, with subclasses Unicycle, Bicycle and Tricycle. Demonstrate that an instance of eachtype can be upcast to Cycle via a ride( ) method. Using the above Cycle hierarchy, add a balance( ) methodto Unicycle and Bicycle, but not to Tricycle. Create instances of all three types and upcast them to an arrayof Cycle. Try to call balance( ) on each element of the array and observe the results. Downcast and callbalance( ) and observe what happens.
C++ Please make the necessary changes and finish the code. Upvote for quick working code in Visual Studio. Thank You. Objectives• To reinforce previously learned fundamentals• To further apply OOP principles• To understand inheritance betterInstructionsMajor steps outline:1. Implement a BasicShape class, which will be a pure abstract base class2. Implement a Circle class derived from the BasicShape class3. Implement a Recentage class derived from the BasicShape class4. Dynamically create objects of the derived classes (at least 6 objects), and store them in a vector<BasicShape*>5. Iterate through the vector, and call the whatAmI, as well as the getArea method (described later) to ensure the correct areas are calculate for the given shapeImplement a BasicShape classWrite one file:• BasicShape.hThe class is a pure abstract base class, which means all of its methods are pure virtual functions. If you don’t know what this means, please refer to the lecture video as well as the…
Q# In the company example, a supervisor has a supervisee. This “has-a” relationship is called: Group of answer choices 1. parent 2. composition 3. extending 3. inheritance
C++ Please make the necessary changes and finish the code. Upvote for quick working code in Visual Studio. Thank You. Objectives• To reinforce previously learned fundamentals• To further apply OOP principles• To understand inheritance betterInstructionsMajor steps outline:1. Implement a BasicShape class, which will be a pure abstract base class2. Implement a Circle class derived from the BasicShape class3. Implement a Recentage class derived from the BasicShape class4. Dynamically create objects of the derived classes (at least 6 objects), and store them in a vector<BasicShape*>5. Iterate through the vector, and call the whatAmI, as well as the getArea method (described later) to ensure the correct areas are calculate for the given shapeImplement a BasicShape classWrite one file:• BasicShape.hThe class is a pure abstract base class, which means all of its methods are pure virtual functions. If you don’t know what this means, please refer to the lecture video as well as the…
Task 2: Delivery Vehicle We want to develop a delivery vehicle that can carry a limited number of equally weighted boxes. To do this we can build off of our previous task by extending the BasicVehicle class. Instructions 1. Create a new class called DeliveryVehicle that is a subclass of BasicVehicle: • a private attribute cargoList of type String[] • a private attribute numItems of type int 2. Create a constructor that takes two parameters: a String for registration, and an int for maxCapacity: • pass on the registration parameter to the super constructor along with 0.0 for altitude, longitude and latitude. • use the maxCapacity parameter to create a new array for cargoList 3. Create a boolean method called isFull that returns if the cargoList is full. 4. Create a boolean method called isEmpty that returns if there are no boxes loaded. 5. Create a method called loadCargo that takes a String parameter description and adds the cargo description to the cargo list (if it is not already…
Computer Science There are clearly some similarities in the implementations of Taxi and Shuttle that suggest use of inheritance to represent them. Introducing inheritance is the primary task of this assessment. -The Ezcab class, The Ezcab class maintains separate lists of taxis and shuttles and destinations with destination fares (you can hardcode destination fares). It has a lookup method that searches for a taxi/shuttle with a given ID. -The Taxi and Shuttle classes share some common attributes – location and destination. They also have some common methods – getLocation, getDestination, getStatus and setDestination. -Vehicle is the superclass of both Taxi and Shuttle. This class involves placing the common fields and methods into Vehicle and removing them from Taxi and Shuttle. -Modify Taxi and Shuttle class to indicate that it is a subclass of Vehicle. You can keep the id field in Vehicle class and getId,SetId methods. -Arrange for Taxi's constructor to call the constructor of…
Introduction to Java Programming Fictional Characters In this homework, you will implement 4 classes using inheritance. Character is going to a be the superclass of 3 fictional character classes (elves, dwarves, giants, vampires, zombies, centaurs, dragons etc. ) of your choosing. Each subclass should have at least two constructors and two extra properties of their own and getters/setters. Each subclass should also override printlnfo() and quote() functions, they are all left to your imagination. printinfo(): Prints all the properties of the character including the extra properties of subclasses. "This character is an X its current age is 2. Xs have a lifespan of 5 years. They usually live in swamps. They can have blue or pink spots, this character has pink spots. This characters likes to eat purple vegetables." quote(): Prints out a sound the character makes, or a phrase the character says if the character is able to speak. "I do like purple vegetables a lot, they compliment my…
Java Program There is a company who known for its courier service. They have service namely Basic, TwoDayPackage and OvernightPackage.Create a base class Package has the following: It has three attributes type Person sender, Person receiver, int weight Encapsulate the fields Override toString and Equals of the Object class Define calculateCost with a return type of double as abstract Create the following constructors- default constructor- constructor that accepts attribute sender, receiver, and weight- constructor that accepts two name, two address, two phone numbers and weight NOTE: Person has the following attributes: String name, String address, and String phone number
Association Relationships in Java Using the revised UML Class diagram Resto Fun Final i posted, continuedeveloping the Resto Fun system by modifying class definitions Create an Order class to break the Many-To-Many relationship between Customer and Item. Thisis a Relationship Class, a class that contains information on the association between to classes.Implement the relationship WaitsOn between Waiter and Customer, knowing that therelationship indicates that this is a One-to-Many relationship mandatory in both ends, i.e., awaiter must wait on a customer and a customer must be waited on by a waiter.Implement the relationship Orders between Customer (Table) and Item, another One-to-Many,since there are many Items a Customers can order, but each Item ordered is for one customeronly.Implement the Add relationship between Order and Item. Include a method to assign the Orderto a Customer before you start adding Items to the Order! There is enough information now to implement the…
Inheritance Hierarchy Given the following classes, arrange them into an appropriate inheritance hierarchy (by just adding a Java keyword and a class name, you do NOT need to add fields and methods). Save each class in it's own file (e.g., the BakeryItem class in BakeryItem.java). Submit all of the files. public class BakeryItem{ /* fields and methods omited for brevity */ } public class FoodItem{ /* fields and methods omited for brevity */ } public class FrenchBreadItem{ /* fields and methods omited for brevity */ } public class FruitItem{ /* fields and methods omited for brevity */ } public class ProduceItem{ /* fields and methods omited for brevity */ } *Note: I have recieved information from my teacher stating, " For the exercise, your files should start with “public class ClassName”. If that class is inheriting from another class, then, it should have “extends ParentClass”. Furthermore, the file should be in ClassName.java."