Why Java is called object-oriented?

Due to the fact that everything in Java is an object and all program codes and data reside within classes and objects

Due to the absence of global scope

Due to its simplicity and ease of extension

Due to the extensive set of classes and packages it comes with

What is the difference between abstraction and encapsulation?

Hiding and Protecting DataOverloading and OverridingNone of the above

What is an example of encapsulation?

Java class with private data members

Java class with public data members

What does "static" mean in Java?

A method for printing to the console

What is "args" in the main method in Java?

A fixed parameter name An integer value

What is an advantage of OOP?

Easily downgraded from small to large systems

What is ad hoc polymorphism?

Technique to define the same method with different implementations

Technique to define different methods with the same implementation

Technique to define methods with similar implementations

Technique to define methods with no implementation

What is ad hoc polymorphism in Java?

A technique used to define the same method with different implementations and different arguments.

A technique used to define variables in Java.

A technique used to create classes in Java.

A technique used to define constants in Java.

What is binding in Java?

Mechanism creating link between method call and method actual implementation.

Mechanism creating link between variables in Java.

Mechanism creating link between classes in Java.

Mechanism creating link between constants in Java.

What is a logic error in Java?

A bug that causes the program to compile and run, but do the wrong thing.

A bug that causes the program to compile but not run.

A bug that causes the program to run but not compile.

A bug that causes the program to compile, run, and do the correct thing.

2-OOPs concepts in java

Authored by ANIL KUMAR

English

Professional Development

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47 questions

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MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are the OOPs concepts in Java?

Variables

Methods

Classes

All of the above

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is OOPs concept with an example?

Object

Method

Variable

Loop

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What are the 6 principles of OOP?

Abstraction, inheritance, polymorphism

Encapsulation, association, composition

Aggregation, abstraction, encapsulation

All of the above

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is abstraction in Java?

The process of hiding necessary details and exposing the rest

The process of exposing necessary details and hiding the rest

The process of reducing an object to its essence

The process of exposing all characteristics of an object

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is polymorphism in Java?

The ability to inherit attributes and methods from another class

The ability to perform different tasks using inherited methods

The ability to create many classes related by inheritance

The ability to override methods in a subclass

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is encapsulation in Java?

The process of storing data members and methods of a class together

The process of making data members and methods accessible to all classes

The process of making data members and methods accessible only to the members of the same class

The process of creating a new instance of a class

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is polymorphism in OOPs?

The concept of accessing objects of different types through the same interface

The concept of bundling data members and methods that operate on that data in a single unit

The concept of exposing necessary details and hiding the rest

The concept of inheriting attributes and methods from another class

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2-OOPs concepts in java

What are the OOPs concepts in Java?

What is OOPs concept with an example?

What are the 6 principles of OOP?

What is abstraction in Java?

What is polymorphism in Java?

What is encapsulation in Java?

What is polymorphism in OOPs?

Why Java is called object-oriented?

What are the three principles of OOP?

What are OOPs methods?

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