Draw an inheritance hierarchy representing parts of a computer system (processor, memory,  disk drive, DVD drive, printer, scanner, keyboard, mouse, etc.).  (BlueJ)

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A: CODE- import java.io.File;import java.io.FileNotFoundException;import java.util.ArrayList;import…

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

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A: Hello Student, hope you are doing well, I will be trying my best to explain and fulfill your query.…

Q: Draw an inheritance hierarchy representing parts of a computer system (processor, memory,  disk…

A: Inheritance hierarchyAn inheritance hierarchy can be created if there are several sub classes that…

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A: I am considering 24 hour time format for it. First creating time class having parameter hours,…

Q: Using the Java programming language, explain how you would utilize each of the following to provide…

A: A class is a user defined blueprint or prototype from which objects are created.

Q: Write an essay that answers t on: what is the difference bet nd an abstract class?

A: The abstract class has the following properties:- Abstract classes may or may not have abstract…

Q: Can you elaborate on how classes relate to objects?

A: - We need to talk about how class relates to objects.

Q: (a) What is the difference between a final class and other classes? Why are final classes used? (b)…

A: The answer for the above question is given in the following step for your reference

Q: You only can instantiate concrete classes, not abstract ones. But you can extend abstract classes as…

A: this statement is true You can only instantiate concrete classes, not abstract ones, but you can…

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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: Declaring instance variables private is an example of:   a. Information Hiding   b. Delegation…

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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…

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Q: Use object-oriented features of Java for a Quiz program. Include  class variables, instance…

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Q: Abstract classes need their subclasses to implement their abstract methods. Is it true?

A: Abstract classes cannot be instantiated but they can be subclassed.

Q: All of the abstract methods of the parent class must be implemented by any subclass. Do you think…

A: It is correct that in object-oriented programming languages that support inheritance and abstract…

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A: Class : The class is the real-world object this provides the variable, properties, and methods of…

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: When should you use an abstract class, when an interface, and when both?

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

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A: ANSWER:-

Q: Using the Java programming language, explain how you would utilize each of the following to provide…

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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: Answer the question below using this UML diagram (this same diagram is used in multiple questions).…

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Q: Draw a class diagram of the electronic library system containing the following categories: 1-…

A: Electronic Library System:- The categories are:- Account class with two classes (student-employee)…

Q: Why can't we use an object from a Parent Class in a Child Class and take use of all its features?

A: Given: Can we use  Parent Class object in a Child Class and take use of all of its features? is the…

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

A: the solution is an given below ;

Q: All of the abstract methods that the parent class has defined must be implemented by any subclass.…

A: Your answer is given below.

Q: Explain and give reasons wh Interface using examples.

A: Interface provided complete abstraction, it allows only final and static variables. While abstract…

Q: Answer the question below using this UML diagram (this same diagram is used in multiple questions).…

A: Unified Modeling Language (UML) is a standardized visual modeling language widely used in software…