Question reference: Â Refer to chapter 4, exercise 4.42 to complete the join method, add membership objects to the club object, and call the numberOfMembers method on the club object.

Question

Want to see the full answer?

Answer 1

Question

Chapter 4, Problem 42E

Program Plan Intro

Question reference:Â Refer to chapter 4, exercise 4.42 to complete the join method, add membership objects to the club object, and call the numberOfMembers method on the club object.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

In this example, a single interface, Game" is created, for two classes, SingleplayerGame and MultiplayerGame. This is on the surface a logical structure. However, in this case, the methods getServerList and pauseGame, published in the Game interface, are not used by both clients (As a MultiplayerGame cannot be paused, and a SingleplayerGame does not have servers).Because of this mismatch, the SingleplayerGame is forced to throw an UnsupportedOperationException when getServerList is called on it, and MultiplayerGame is forced to throw an UnsupportedOperationException when pauseGame is called on it. Which SOLID principle is violated here? . (SRP, OCP, LSP, ISP, or DIP) The Single Responsibility Principle (SRP)The Open-Closed Principle (OCP)The Liskov Substitution Principle (LSP)The Interface Segregation Principle (ISP)The Dependency Inversion Principle (DIP)

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); }

IN JAVA LANGUAGE Write an ATM class with an ArrayList of Account objects as an attribute. In the constructor, add 3 Account objects to your ArrayList. They can all have a start balance of $100 and an annual interest rate of 0.12. Include two methods, menu and makeSelection as outlined below. Please note that since both methods get user input, create a Scanner attribute to use in both. menu method This method does not have any parameters and does not return a value. It should: Get the account number from the user. This corresponds to the index of the items in the ArrayList. Since there are 3 elements in your ArrayList, you are going to ask them for a number between 1 and 3, but keep in mind that the indices of the ArrayList are 0-2, so you'll have to adjust the value you get from the user accordingly. Present the user with a main menu as shown below: Get their menu selection Call the makeSelection method, passing it the account index obtained in step 1 and the menu selection…