Question 15 A class can inherit from just one base class, but it can implement multiple interfaces True False
Q: 10 A class has to necessarily be declared as abstract class if
A: Required:
Q: Interfaces provide more advantages than abstract classes.
A: In Java, abstract class and interface both are used to achieve abstraction where abstract methods…
Q: Declare an interface named Employee with the methods named sALARY and bEHAVIOR declare a concrete…
A: The below program is about declaration of an interface named Employee with the methods named sALARY…
Q: Describe what advantages interfaces have over abstract classes.
A: Computer Programming: Programming is the procedure of forming a set of instructions that directs a…
Q: Implement the following hierarchy using C++ classes. 1. Shape: This should be an interface class…
A: Program: #include <iostream>using namespace std; // Abstract classclass Shape { protected:…
Q: Please explain the advantages of using interfaces rather than abstract classes.
A: An interface is a class blueprint that comprises a collection of abstract methods. There is a…
Q: T/F1. However, implementation classes may be extended, but interface classes cannot
A: Actually, Class is a blue print of real world object. It combines data and functionality as a single…
Q: 1. Abstract classes and interfaces can both be used to model common features. How do you decide…
A: (1) You should use an interface if you want to specify a set of methods that must be implemented by…
Q: T/F 1. Interface classes cannot be extended but classes that implement interfaces can be extended.
A: We are going to state whether Interface classes cannot be extended but classes that implement…
Q: What are the advantages of utilizing interfaces as opposed to abstract classes?
A: The answer of the question is given below
Q: Answer By True or False , JAVA LANGUAGE A Java interface can contain only constants and abstract…
A: Object oriented programming also abbreviated as OOPS as a programming pattern based on the concept…
Q: What do we means by class interface. Write a small piece of code to explain class interface
A:
Q: T/F1. Interface classes cannot be extended but classes that implement interfaces can be extended.
A: Given that, Interface classes cannot be extended but classes that implement interfaces can be…
Q: Explain the advantages of interfaces versus abstract classes.
A: Introduction: Computer programming is the process of creating a set of instructions that tells a…
Q: PROGRAMMING LANGUAGE: JAVA SUBJECT: ADVANCED OOP WITH JAVA QUESTION NO 1: Make an abstract…
A: Abstract class: In the Java programming language, an Abstract class is declared using the abstract…
Q: Abstract classes and interfaces may be used interchangeably to specify the behavior of objects. How…
A: Interfaces and abstract classes are both characteristics of object-oriented programming languages.…
Q: Why do you need to implement all the methods of an interface in class which implements an interface?
A: 1. In java Interface is nothing but a blue print of class has abstract methods and static final…
Q: your class inherits from abstract classes or interfaces?
A: An interface contains a set of methods that haven’t been implemented. A class that references the…
Q: In comparison to abstract classes, interfaces provide superior advantages.
A: Introduction :- While interfaces and abstract classes each have advantages and uses, interfaces are…
Q: Describe one advantage of requiring a class to implement an interface.
A: Interface is a user-defined data type which consists of abstract methods. It is used when different…
Q: Distinguish between implementing an interface and implementing a derived class.
A: Answer: While implementing an interface, we need to implement all the methods declared in the…
Q: Class definition Define a class bankAccount to implement the basic properties of a bank account. An…
A: Filename: bankAccount.h #ifndef BANK_ACCOUNT #define BANK_ACCOUNT #include<iostream>…
Q: Interfaces are used to define stronger is-a relationships because one class can inherit multiple…
A: A class is able to implement more than one interface, which contains default methods that have the…
Q: QUESTION 5 All methods in an abstract class must also be declared abstract. O True False
A: Abstraction is a process of hiding the implementation details and showing only functionality to the…
Q: The process of forming a new class from an existing class. a. Abstraction b. Polymorphism c.…
A: Question The process of forming a new class from an existing class. a. Abstraction b. Polymorphism…
Q: Differentiate between static and instance class members. Explain with proper example when you should…
A: Instance variables Static (class) variables Instance variables are declared in a class, but…
Q: True or false?(a) Every object is an instance of the object class.(b) If a class does not extend a…
A: • In a programming language, the concept of inheritance allows the programmer to use common…
Q: Pick the incorrect statement: O A class can implement more than one interface O A class can extend…
A: Extends keyword to include a class (indicates that a class is inherited from another class). In…
Q: Explain why you prefer interfaces over abstract classes.
A: Introduction: Interface: It is a blueprint/template of the class that has abstract methods and…
Q: which application of oop can be provide a degree of freedom in the * :interface design option…
A: Friend functions provide a degree of freedom in the interface design option. This function is used…
Q: Library Management System Develop a Library Management system for borrowing and returning…
A: Actually, given information A. Adding/editing/deleting instances belonging to each class, B.…
Question 15
A class can inherit from just one base class, but it can implement multiple interfaces
True
False
Step by step
Solved in 2 steps
- T/F1. Interface classes cannot be extended but classes that implement interfaces can be extended.T/F1. However, implementation classes may be extended, but interface classes cannot.Interfaces are used to define stronger is-a relationships because one class can inherit multiple interfaces. Ture or false
- T/F1. Interface classes cannot be expanded, but implementation classes may.The Critter class is a base class with some basic functionality for running simulations of different kinds of critters. Critters can move, act, and remember their history. A typical simulation contains a number of critters of different types. In each step of the simulation, the act member function will be called on each critter. Define a class Sloth derived from Critter that simulates a sloth. Sloths alternate between eating and sleeping. Add the word "eat" or "sleep" to the history each time the act function is called. The implementation of the Critter class is not shown. Complete the following file: sloth_Tester.cpp #include <iostream>using namespace std; #include "critter.h" /**A sloth eats and sleeps.*/class Sloth : public Critter{public:Sloth();. . .private:. . .}; Sloth::Sloth(){. . .} void Sloth::act(){if (...) {add_history("eat");...}else{add_history("sleep");... }} int main(){Sloth sloth;sloth.act();cout << sloth.get_history() << endl;cout <<…1. Why do you need to implement all the methods of an interface in class which implements an interface?
- Inheritance and PolymorphismThis assignment starts with the Account class from Labs 4 and 5.Our new and improved bank has two kinds of accounts, savings, and checking. In addition to an ID and a balance, savings accounts have an annual interest rate and a minimum balance. Checking accounts have a minimum balance and a monthly fee. Withdrawals and deposits can be made to both kinds of accounts. At the end of each month, savings accounts pay interest, but only if the account’s balance is above the minimum. Also at the end of each month,a fee is deducted from each checking account, but the fee is waived if the account’s balance is over the minimum. Tasks1.Create a complete UML diagram which shows the relationships between the three classes, Account, Savings, and Checkingand all of the fields and methods in each. The only modificationsrequired to the Account class is the addition of two abstract methodscalled closeMonth and accountString.2.The closeMonth function performs the appropriate…Library Management System Develop a Library Management system for borrowing and returning activities The basic classes could be the main Library, Subscribers, borrowing records, Contents, articles, e.t.c. NB: Contents may include books, journal articles or digital media. Also a subscriber may borrow books for one month, after which a fee accrue until the borrowed item is returned. On the other hand, golden subscribers may borrow for 2 months without fee before fees begin. Provides an interface for the user to: A. Adding/editing/deleting instances belonging to each class, B. Subscriber browsing library contents and select items to borrow. C. Subscriber returning borrowed item and check his balance and pay any late fee if any. D. Admin can print reports of overdue borrowed items.Polymorphism Create a class hierarchy that represents different types of employees in a company. Start with a class called Employee that has two methods: calculateSalary() and displayDetails(). Then, create two subclasses of Employee: Manager and Engineer. Override the calculateSalary() method in both subclasses to calculate the salary based on their job role and experience. Override the displayDetails() method in both subclasses to print out a message indicating the details of the employee. Next, create another class called Salesperson that extends Employee and has a method called calculateCommission(). Create two subclasses of Salesperson: SeniorSalesperson and JuniorSalesperson. Override the calculateCommission() method in both subclasses to calculate the commission based on their sales performance. Override the displayDetails() method in both subclasses to print out a message indicating the details of the salesperson. In the main method, create objects of each class and call their…
- Wtite a program in java language also give source code and output also.classKOTLIN: Classes and Inheritance Given the Pet as the parent class of the Cat, Dog, and Fish. Complete the code so that each instance of Cat, Dog and Fish can shows their informations and action as given. //Expected output A pet named Garfield with color Orange do meow A pet named Pluto with color Black do barks A pet named Jenny with color Gold do Swim