Cor Java
Java Object-Oriented Programming Quiz
Test your knowledge in Java's object-oriented programming concepts with our engaging quiz! This quiz is designed to challenge your understanding of core principles, keywords, and techniques used in Java programming.
Whether you're a beginner or looking to refresh your skills, this quiz will cover:
- Constructors
- Inheritance
- Encapsulation
- Static Methods and Variables
Which is the default return type of constructor
No return Type
Class object in which it is defined
Void
None
When is the object created with a new keyword
At Run Time
At Compile Time
Depends on the code
Which keyword must be used to inherit a class from another class
Extend
Extends
Implements
Derives
Which of the following access specifier must be used while implementing encapsulation
Private
Public
Protected
Default
Which of the following keyword should be used for allocating memory space for the object
New
Create
Classname
Allocate
Which of the following is not a part of oops concept
Classes
Object
Inheirtance
Friend function
Same Function defined with varying parameters in a same class is called as
Function Overriding
Function Overloading
Function Duplication
None
Same Function defined in base class and derived class is called as
Function Overriding
Function Overloading
Function Duplication
None
Which of the keyword must be used in order to invoke the constructor of base class
Super
Base
Invoke
None
Java supports Multiple inheritance without interfaces
True
False
Which of the keyword must be used if we want to create a class from an interface
Implements
Extends
Extend
None
How to create a constructor?
Class Name and constructor name must be same
Object name and class must be same
Method name and constructor name must be same
None
How to invoke a static method
Using object
Using method name
Using classname
Static Variable is automatically initialized to zero if no value is provided.
True
False
Array size can be expanded in runtime
True
False
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