Java Programming Quiz

How is inheritance denoted in Java?

• extends

• implements

• inherits

• derives

What is inheritance in OOP?

• Process of creating an object

• Process of acquiring properties and methods from another class

• Data transfer between objects

• Data hiding within a class

What is an abstract class in Java?

• A class created without using the class keyword

• A class that cannot be inherited

• A class intended only for static methods

• A class that contains abstract methods and may also contain implemented methods

What is a class in Java?

• Instance of an object

• Blueprint for an object

• Function

• Operator

How is the implementation of an interface denoted in Java?

• implements

• extends

• interfaceOf

• inherits

How do you create an object instance in Java?

• new Object();

• create Object;

• Object.create();

• Object.new();

How is an abstract method denoted in Java?

• abstractMethod()

• void abstractMethod()

• abstract void method();

• abstract method();

What is the main idea of Object-Oriented Programming (OOP)?

• Procedural Programming

• Object Orientation

• Functional Programming

• Linear Programming

Can a class in Java implement multiple interfaces simultaneously?

• No, only one interface

• Yes, any number of interfaces

• Yes, but no more than two interfaces

• Depends on the Java version

What is an interface in Java?

• A class with only static methods

• A class that cannot contain methods

• A class providing only abstract methods

• A contract defining a set of methods that must be implemented by other classes