Which of the following best describes the purpose of a constructor in Java?

Java MCQ: Which of the following best describes the purpose of a constructor in Java?

a) To destroy an object when it is no longer needed
b) To initialize an object when it is created
c) To return a new instance of the class
d) To create a copy of an object

Answer:

b) To initialize an object when it is created

Explanation:

A constructor in Java is a special method used to initialize objects when they are created. It is called automatically when an instance of a class is created using the new keyword. The primary purpose of a constructor is to set up the initial state of the object by assigning values to its fields.

Constructors do not have a return type, not even void. They can be overloaded, meaning that a class can have multiple constructors with different parameter lists to allow for different ways of initializing an object.

Understanding constructors is essential for proper object creation and initialization in Java, ensuring that objects are ready to use as soon as they are instantiated.

Reference links:

https://www.rameshfadatare.com/learn-java-programming/
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top