B - RobotFriend Create a RobotFriend class. RobotFriend is a new toy just on the market. Copy the starter class and the tester from Codecheck. A RobotFriend has a name and replies to various commands Provide a constructor that takes the name of the RobotFriend as a parameter. Remember that a constructor has the same name as the class. What does the class need to remember? That is the instance variable. Provide the following methods: • public String getName() gets the name of this RobotFriend • public void setName (String newName) sets a new name for this RobotFriend • public String whatDoYouNeed() returns a string consisting of name + needs a battery charge" where name is the name of this RobotFriend (which was supplied in the constructor) • public String doCommand(String whatToDo) returns a string consisting of "Your friend " + name + " does not " + whatToDo where name is the name of this RobotFriend and whatToDo is the parameter

B - RobotFriend Create a RobotFriend class. RobotFriend is a new toy just on the market. Copy the starter class and the tester from Codecheck. A RobotFriend has a name and replies to various commands Provide a constructor that takes the name of the RobotFriend as a parameter. Remember that a constructor has the same name as the class. What does the class need to remember? That is the instance variable. Provide the following methods: • public String getName() gets the name of this RobotFriend • public void setName (String newName) sets a new name for this RobotFriend • public String whatDoYouNeed() returns a string consisting of name + needs a battery charge" where name is the name of this RobotFriend (which was supplied in the constructor) • public String doCommand(String whatToDo) returns a string consisting of "Your friend " + name + " does not " + whatToDo where name is the name of this RobotFriend and whatToDo is the parameter

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

The Cat and Dog class below implement the Animal interface. All animals have names, but only dogs do tricks. Implement the describe method, using the instanceof operator to test whether the given animal is a dog. If so, return the name, a space, and the trick that the dog can do, such as "Helmut barks at the moon". If it is any other kind of animal, return the name, a space, and "has no tricks". public class Animals{ /** Describes the given animal. @param pet an animal @return a string with the animal's name, a space, and either the trick that the animal knows (if it is a dog) or a string "has no tricks" */ public static String describe(Animal pet) { // TODO: Complete this method } // This method is used to check your work public static String check(String name, String trick) { Animal pet; if (trick == null) pet = new Cat(name); else pet = new Dog(name, trick); return describe(pet); }
These two pictures are my resource and driver classes. Please, help me with the error in my resource class. I want my resource class to have getName, getSalary, getThePercentageThatTheEmployeeWantToRaise, and calculateTheNewSalary methods. For my driver class, I want the driver class to ask the user to input their name, salary, how much they want to raise, and print out their new salary.
Write a complete program for the description given below. Consider a Billing class that implements an interface Payable having a method getTotalPayment Amount(). Besides this, you have a Doctor class with private instance variables (docID, docName, and docFee) and a public getDoc() method, Patient class with private instance variables (pName, pID. pDisease), Medicine class with private instance variables (medID, medName, medQty, medPrice), and Medical Test class with private instance variables (testID, testName, testPrice). Each of these classes has the toString() method to display the information of its object. The Billing class is having "Has A" relationship with the other four classes (Doctor, Patient, Medicine, and MedicalTest) mentioned above. The getPayment Amount() method of Billing class returns the total billing amount that includes doc fee, medicine cost, and medical test fee that a patient has to pay. After implementing these classes, you are required to do the following in…
Which of the following cases is most like the adapter pattern? A. If you have an interface called Duck, and have many ducks that implement the duck interface. All of these ducks must have the behaviour “quack” but for some ducks, like a Mallard, this must result in a quack, where for a rubber duck it must result in a squeak. We decide to delegate the quack method to another interface, which can be implemented either in a concrete class that returns a quack or a concrete class that returns a squeak. B. None of these are like the adapter pattern. C. We have a large collection of Ducks. We want to look at them one by one and hear them quack. We write a piece of code that iterates through them all, and as we encounter each one, we have it invoke the quack method. D. If we have an interface called Duck. We need to give an object to a user that can quack like a duck. All we have is Turkeys. We create a special class that implements the duck interface, and to implement the quack…
For this exercise, you will be given a project file digital_pet containing two (2) classes, the DigiPet class andthe DigiPetTester class.Every DigiPet has five fields:- name- lifespan (in cycles) – max age- age (in cycles) – current age- mood (2 = joyful, 1 = happy, 0 = neutral, -1 = sad, -2 = angry)- size – current size of pet (size ≥ 1)A DigiPet has a default constructor, overloaded constructor, and some various methods which allow one tointeract with it or modify its state.Poke or pet increases or decreases its mood.Feed or exercise increases or decreases its size by a specified amount.Every time you interact with the digipet (poke, pet, feed, exercise), its age increases. When the age reaches thelifespan, it dies (or becomes a zombie).You need to modify and customize the DigiPet class as follows:- Implement the overloaded constructor: Initialize all five fields. Use the values passed as parameters toinitialize name and lifespan. Use the same default values that the default…
Take the tax program from the last homework assignment and implement it using classes and objects instead. To do so, create a class definition for a class called Customer with attributes income and tax. It should also have a set method for income, and a calcTax() method to assign tax and return it. As a reminder, the tax is calculated as follows: Income Tax Due $0 - $50,000 5% $50,000-$100,000 $2,500 + 10% of (income > $50,000) > $100,000 $7,500 + 15% of (income > $100,000) Create a Customer object in main, have the user enter the income and assign this to the income variable of the Customer object, and then call the calcTax() method for the Customer object and print the tax due.
Write a resource class that has the deposit, withdrawal, and print balance methods. Next, implement this resource class into a driver class that asks the user to input the amount of money that they want to deposit, the amount of money that they want to withdraw, and print out the balance.
Complete the class LeprechaunGold to model a stash of gold coins at the end of the rainbow. There is a maximum capacity to the number of gold coins a leprechaun can store at any given time (the pot they store them in can only hold so many). The pot also holds a current amount. What does the LeprechaunGold object need to remember? Those are the instance variables. Provide a constructor that takes the maximum capacity as a parameter. The constructor initializes the instance variables (two of them). Provide methods public int getCapacity() - gets the maximum capacity public int getAmount() - gets the number of coins in the pot public void donate(int coins) - simulates making a donation public void save(int coins) - simulates adding more coins to the pot
Write a Java program for a class named Baby. A Baby has a name of type String and an ageof type integer.Supply two constructors: one will be the default constructor, that just setsdefault values for the name and age; the second constructor will take twoparameters, a string to set the name and an integer to set the age. Also, supplymethods for setting the name, setting the age, getting the name and getting theage.The class should not contain I/O methods; input of values to the instancevariables must be done with a set method or constructor, output of values fromthe instance variables must be done with get methods. The set method for thename instance variable should ensure that the input is not empty or containwhitespaces (otherwise set a default value). The set method for the ageinstance variable should validate the input to be between 1 and 4 inclusive(otherwise set a default value).Give Java code for an equals method for the Baby class. Babies count asbeing the same (i.e. equal) if…
Create two classes of your choice (a parent and a child) and access their properties as shownabove
Implement the ShoppingCart and Product class with necessary properties so that the given output is produced. Do not change any given code.s1 = ShoppingCart()p1 = Product("Razer BlackShark","Headset",99.99,5)p2 = Product.createProduct("Razer Huntsman","Keyboard",249.99,12)print("1.====================================")s1.addGadget(p1,p2)print("2.====================================")s1.setCartName("Amazon")s1.addGadget(p1,p2)s1.addGadget(Product("HyperX Fury","Mousepad",26.99,21))print("3.====================================")print("Total Products created:",Product.totalProducts)print("4.====================================")s1.printCartDetails()print("5.====================================")s1.removeFromCart("Logitech G ProX Superlight")print("6.====================================")s1.removeFromCart("Razer Huntsman")print("7.====================================")s1.printCartDetails()Output:1.====================================Please set the cart name…
WAKA, WAKA. Pac-Man was a big hit back in the 80s. One of the things he could do was “teleport” from one side of the screen to the other, and that’s what we’re going to implement here. For this program, you’re going to write a class that only has two attributes: an X and Y location. Imagine the player is on a 10x10 grid. If the player exceeds the bounds of the screen, their location teleports to the other side of the screen (e.g. far-right players go to the far-left). The class should include methods for going up, down, left and right. Finally, you should make a “driver” that brings an instance of this class to life in the middle of the “screen” and enables the player to move up, down, left and right. Implement (source code) this program. C++ Please