In Java, which of the following is false? An abstract class may implement an interface. A class that contains an abstract method must be declared abstract itself or a compiler message will result. A class may implement multiple interfaces. A class that extends another class may implement only one interface.

Q: Write a java program to create any number of classes with one controlling class to implement…

A: The answer is as follows:-

Q: Fill in the blanks A child interface can inherit from parent interface(s) and override or revise the…

A: An interface can extend multiple interfaces i.e A child interface can inherit from multiple parent…

Q: 2. Which of the following is correct in Java: a. b. c. A class can inherit from only one super…

A: High-level Java is a platform-independent, portable, and secure programming language. In addition to…

Q: In Java a class is allowed to inherit from as many superclasses as needed. True False

A: Stating given statement is true/false with explanation. Given statement : In Java a class is allowed…

Q: A subclass of an abstract class must be able to do all of the things the parent class can do. True…

A: The answer of this question is as follows:

Q: Question 15 A class can inherit from just one base class, but it can implement multiple interfaces…

A: Here is your solution -

Q: Write a java program to create any number of classes with one controlling class to implement…

A: InheritanceWhen one object acquires all the properties and behaviors of a parent object, it is known…

Q: What advantages do Interfaces have over abstract classes when it comes to performance?

A: In terms of performance, interfaces and abstract classes have similar performance characteristics,…

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: Define an abstract class LivingBeing. Define abstract methods breath, sleep, eats. Define Subclasses…

A: Sample Response: //Abstract class definitionabstract class LivingBeing{  //Abstract methods  public…

Q: Does using Interfaces instead of abstract classes affect their performance?

A: Introduction: An interface is a sort of abstract data used to indicate how a class behaves in the…

Q: What are the advantages of utilizing interfaces as opposed to abstract classes?

A: The answer of the question is given below

Q: 1) The following is a valid interface definition in Java public interface Shape {     default…

A: Actually, java is a object oriented programming language.

Q: Write a java program to create any number of classes with one controlling class to implement…

A: Given:

Q: In terms of performance, what are the benefits of Interfaces over abstract classes?

A: Introduction: The benefits of Interfaces over abstract classes

Q: Design a JAVA program for CREDITCARD to maintain the user services. Make CREDITCARD as interface.…

A: The answer is

Q: Deduce a Java program for the following concepts. Assume your own scenario and come out with the…

A: Note: There are many sub questions it is not mentioned which to answer so i would prefer to answer…

Q: What is polymorphism in Java

A: Polymorphism:  Polymorphism is derived from the two words: poly means many and morphs means forms.…

Q: What is/are the differences between an abstract class and an interface? A class can implement…

A: Solution What is Interface? The interface is a blueprint that can be used to implement a class. The…

Q: When should one use an abstract class, when should one use an interface, and when should one use…

A: Introduction: Abstract reasoning, sometimes referred to as abstract thinking, is the capacity to…

Q: To be a subclass of an abstract class, a subclass must implement all of the abstract methods of its…

A: Introduction: Abstract class refers to a class defined using the "abstract" keyword. It may use both…

Q: When should one use an abstract class, when should one use an interface, and when should one use…

A: firstly difference between abstract class and interface? Abstract Class : An abstract class can…

Q: Write a java program to create any number of classes with one controlling class to implement…

A: PROGRAM CODE:   import java.io.*;import java.util.*;abstract class Employee{String name;int…

Q: Design a console program that will print details of prescribed textbooks of students. Make use of an…

A: public interface iPrintable { String DisplayDetails(); }

Q: Which of these statements IS NOT true regarding design by contract.   Question options:   Creating…

A: Thе question is asking which of the following statеmеnts is NOT truе rеgarding dеsign by contract.…

Q: Explains what multilevel inheritance is and the difference between an interface and an abstract…

A: Multilevel inheritance is one of the type of inheritance in which  derived class is inherited by…

Q: Create an inheritance hierarchy for farm animals with the abstract parent class animal, at least…

A: Lets see the solution in the next steps

Q: When should an abstract class be used, when should an interface be used, and when should both be…

A: According to the provided information: We need to define the use of an abstract class, interface…

Q: Describe a benefit from requiring class to implement an interface.

A: It is used to achieve total abstraction

Q: 1. Create (the package) as (P1) and another as (P2). 2. Create an Interface (named Human) inside…

A: A class is the building block of object oriented modelling. It contains data and operations on that…

Q: When should one use an abstract class, when should one use an interface, and when should one use…

A: Introduction: Abstract reasoning, sometimes referred to as abstract thinking, is the capacity to…

Q: Computer Science Create a class diagram for the code below (code is in Java): // The interface…

A: In this question we have to draw a class diagram for the following question

Q: The intent of the factory method pattern is to allow a class to differ . to subclasses Select one:…

A: We know that the meaning of keyword instantiation is that, the new operator will instantiate a class…

Q: For your application, explain the benefits of interfaces over abstract classes.

A: Solution::   Modern C++ collector/makers usually create very inefficient code when virtual functions…

Q: How are interfaces different from abstract classes?

A: Introduction: Object-oriented programming (OOP) is a programming paradigm that is based on the…

Q: Abstract classes and interfaces vary in what ways?

A: An interface is a construct that looks like a class but only has constants and abstract methods. An…

Q: Does the usage of interfaces as opposed to abstract classes have any effect on the performance of…

A: Abstract classes are used to give standard method implementations to all subclasses or to provide…

Q: What are the most important differences that distinguish interfaces from abstract classes?

A: As you did not specify otherwise, we presume your inquiry relates to Java programming. Data…

Q: Polymorphism in Java is Select one: a.when a program uses several different types of objects, each…

A: I have provided solution in step2.

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…