True or False ___(4) An object of a subclass can be assigned to the variable of its superclass. ___(5) The Object class is the super class of any Java class. ___(6) An interface may include variables if needed.

True or False _(4) An object of a subclass can be assigned to the variable of its superclass. _(5) The Object class is the super class of any Java class. ___(6) An interface may include variables if needed.

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter11: Advanced Inheritance Concepts

Section: Chapter Questions

Problem 6RQ

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Concept explainers

OOPs

In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.

Constructor

The easiest way to think of a constructor in object-oriented programming (OOP) languages is:

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True or False ___(1) An abstract class can have fields. ___(2) You can create an object from an abstract class _ _(3) An abstract class can have both abstract methods and methods that have method body
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variables are variables that have the same name as variables that have been declared in a superclass and are declared in a subclass, respectively.
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Inheritance The more general class is typically known as the parent class, super class, or base class. The more specific class is typically known as the child class, sub class, or derived class. The Java keyword extends allows you to indicate that one class should be the child class of the original parent class. The child will then inherit everything from the parent class, including variables and methods. {0} Online (1) Main.java x Student.java public class Main { 1 2 3 4 5 6 Run V 7 8 9 10 11 12 13 14 } public static void main(String[] args) { /* Person class example */ Person teacher = new Person(); teacher.setName("Laurel"); System.out.println(teacher); } Reid Moseley X Person.java x /* Student class example */ Student student = new Student (); student.setName("Alice"); System.out.println(student); CONSOLE SHELL Name: Laurel Name: Alice Reset to Template Open Desktop