Object Oriented Programming (Java)

What best describes the term 'Inheritance'

• Hiding the internal state and functionality of an object and only allowing access through a public set of functions.

• Modeling the relevant attributes and interactions of entities as classes to define an abstract representation of a system.

• The ability to implement inherited properties or methods in different ways across multiple abstractions.

• The ability to create new abstraction based on existing abstractions.

What best describes the term 'Encapsulation'

• Hiding the internal state and functionality of an object and only allowing access through a public set of functions.

• Modeling the relevant attributes and interactions of entities as classes to define an abstract representation of a system.

• The ability to implement inherited properties or methods in different ways across multiple abstractions.

• The ability to create new abstraction based on existing abstractions.

What best describes the term 'Abstraction'

• Hiding the internal state and functionality of an object and only allowing access through a public set of functions.

• Modeling the relevant attributes and interactions of entities as classes to define an abstract representation of a system.

• The ability to implement inherited properties or methods in different ways across multiple abstractions.

• The ability to create new abstraction based on existing abstractions.

What best describes the term 'Polymorphism'

• Hiding the internal state and functionality of an object and only allowing access through a public set of functions.

• Modeling the relevant attributes and interactions of entities as classes to define an abstract representation of a system.

• The ability to implement inherited properties or methods in different ways across multiple abstractions.

• The ability to create new abstraction based on existing abstractions.

The code shown here demonstrates the use of which OOP principle?

The sample code show employs 'method overriding'. What does method overriding enable?

• It allows for multiple definitions of the same function that are distinguished by input variables.

• It allows inherited classes to define their own implementation of the function Print().

• It allows inherited classes to reuse the definition of the function Print().

• It allows the user to override static, abstract, and private modifiers.

Using Method Overriding is an example of:

• inheritance

• polymorphism

• encapsulation

• abstraction

The code pictured uses what principle?

Overloading an example of:

• inheritance

• polymorphism

• encapsulation

• abstraction

Why is this code going to generate an error?

• The private keyword means that 'display' is only accessible to methods of class A.

• You can't create an instance of class A in class B.

• Class A is not accessible from class B.

• This code will not generate an error.