What is basics of encapsulation?

A. Binding together code and data

B. Hiding unnecessary information

What is abstraction in OOP?

A. Hiding unnecessary information.

B. Showing only essential attributes.

What is a thread in Java?

A. A lightweight process that can run concurrently with other threads.

B. A way of organizing data and methods in a class.

C. A blueprint for creating objects.

D. A way of hiding the implementation details of a class.

Why is encapsulation important?

A. It allows us to hide the implementation details of a class from its users.

B. It makes the code more robust and easier to maintain.

C. It helps to prevent errors, as changes to the implementation details of a class will not affect the code that uses the class.

Why do we use encapsulation?

A. To hide the values or state of a structured data object inside a class.

B. To prevent unauthorized parties' direct access to them.

C. To keep the data organized and consistent.

What is the difference between encapsulation and class?

A. Encapsulation is a way of organizing data and methods in a class, while a class is a blueprint for creating objects.

B. Encapsulation is used to hide the implementation details of a class, while a class is used to create objects that have the same properties and methods.

What are the 4 types of OOP?

A. Abstraction, encapsulation, inheritance, and polymorphism.

B. Data abstraction, process abstraction, and polymorphism.

C. Encapsulation, inheritance, polymorphism, and modularity.

What are the 4 parts of OOP?

A. Abstraction, encapsulation, inheritance, and polymorphism.

B. Data abstraction, process abstraction, and polymorphism.

C. Encapsulation, inheritance, polymorphism, and modularity.

What are the 4 attributes of OOP?

A. Abstraction, encapsulation, inheritance, and polymorphism.

B. Data abstraction, process abstraction, and polymorphism.

C. Encapsulation, inheritance, polymorphism, and modularity.

What is abstraction types?

A. Data abstraction and process abstraction.

B. Encapsulation and inheritance.

C. Polymorphism and modularity.

What is polymorphism in OOPs?

A. The ability of an object to take on different forms.

B. The ability of an object to inherit from another object.

C. The ability of an object to encapsulate its data.

What type of process is encapsulation?

A. A process where a continuous thin coating is formed around solid particles, liquid droplets, or gas cells.

B. A process of hiding certain details and showing only essential information to the user.

C. A process of combining data and methods into a single unit.

D. A process of creating objects that can interact with each other.

What are the three methods of encapsulation?

B. Abstraction, inheritance, and polymorphism.

C. Encapsulation, data hiding, and abstraction.

D. Modularity, cohesion, and coupling.

What is abstraction in Java?

A. A process of hiding certain details and showing only essential information to the user.

B. A process of combining data and methods into a single unit.

C. A process of creating objects that can interact with each other.

D. A process of defining the behavior of an object without specifying its implementation.

What is Java inheritance?

A. A concept in Java where a class can acquire the properties of another class.

B. A concept in Java where a class can acquire the methods of another class.

C. A concept in Java where a class can acquire the data of another class.

D. A concept in Java where a class can acquire the behavior of another class.

What are the 2 types of polymorphism?

A. Compile-time polymorphism and run-time polymorphism.

B. Data polymorphism and process polymorphism.

D. Abstraction and encapsulation.

What are the two types of abstraction?

A. Data abstraction and process abstraction.

B. Data encapsulation and process encapsulation.

C. Data hiding and process hiding.

D. Abstraction and inheritance.

What are the three types of abstraction?

A. Descriptive, informative, and critical.

B. Data abstraction, process abstraction, and procedural abstraction.

C. Encapsulation, inheritance, and polymorphism.

D. Abstraction, interfaces, and overriding.

What is interfaces in OOP?

B. A way of specifying the behavior of a class.

A. A programming structure/syntax that allows the computer to enforce certain properties on an object (class).

C. A way of hiding implementation details from the user.

D. A way of storing multiple values of the same type in a single variable.

What is array in Java?

A. A container object that holds a fixed number of values of a single type.

B. A programming structure/syntax that allows the computer to enforce certain properties on an object (class).

C. A way of specifying the behavior of a class.

D. A way of hiding implementation details from the user.

What is overriding in Java?

A. In Java, method overriding occurs when a subclass (child class) has the same method as the parent class.

B. A way of specifying the behavior of a class.

C. A way of hiding implementation details from the user.

D. A way of storing multiple values of the same type in a single variable.

What is OOP and its principles?

A. A programming style based on objects.

B. A programming style based on functions.

C. A programming style based on data structures.

D. A programming style based on algorithms.

Why is encapsulation secure?

D. Encapsulation prevents data and methods from being changed by outside sources.

A. Encapsulation restricts access to data and methods in an object.

B. Encapsulation allows access to data and methods in an object.

C. Encapsulation allows data and methods to be changed by outside sources.

What's data abstraction?

A. The reduction of a particular body of data to a simplified representation of the whole.

B. The expansion of a particular body of data to a more detailed representation of the whole.

C. The transformation of a particular body of data into a different format.

D. The manipulation of a particular body of data.

What are the advantages of encapsulation in Java?

A. It makes programming flexible.

C. It makes the application simple and easy to debug.

Is inheritance an encapsulation?

D. It depends on the implementation.

Encapsulation - Part 1

Authored by ANIL KUMAR

Computers

Professional Development

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MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are the 3 types of encapsulation in Java?

A. Member variable encapsulation, function encapsulation, and class encapsulation

B. Private variable encapsulation, public variable encapsulation, and protected variable encapsulation

C. Member variable encapsulation, function encapsulation, and static encapsulation

D. Private variable encapsulation, public variable encapsulation, and final variable encapsulation

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is encapsulation 1?

A. A way to restrict the direct access to some components of an object

B. A way to make a class more robust and easier to maintain

C. A way to hide the implementation details of a class

D. A way to bind data and methods together

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is encapsulation for in Java?

A. To integrate data (variables) and code (methods) into a single unit

B. To hide the implementation details of a class

C. To make a class more robust and easier to maintain

D. All of the above

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are the 4 pillars of OOP encapsulation?

A. Inheritance, Polymorphism, Encapsulation, and Abstraction

B. Abstraction, Encapsulation, Polymorphism, and Composition

C. Inheritance, Composition, Encapsulation, and Polymorphism

D. Abstraction, Composition, Encapsulation, and Inheritance

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is encapsulation in OOP?

A. A way to restrict the direct access to some components of an object.

B. A way to make a class more robust and easier to maintain.

C. A way to hide the implementation details of a class.

D. A way to bind data and methods together.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are 2 examples of encapsulation?

A. School bag and email account

B. Physical layer and data link layer

C. Code and data

D. Header and trailer

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What layer is encapsulation?

A. Physical layer

B. Data link layer

C. Network layer

D. Transport layer

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Encapsulation - Part 1

What are the 3 types of encapsulation in Java?

What is encapsulation 1?

What is encapsulation for in Java?

What are the 4 pillars of OOP encapsulation?

What is encapsulation in OOP?

What are 2 examples of encapsulation?

What layer is encapsulation?

What is basics of encapsulation?

How many layers of encapsulation are there?

What is abstraction in OOP?

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