Class 12 Constructors and Destructors Revision Notes

Welcome! Check out the Class 12 Constructors and Destructors Revision Notes right here. Built for 2026-27, this advanced study guide offers Class 12 Computer Science learners comprehensive revision notes, important questions, and clear answers. Created by expert teachers following official CBSE, NCERT, and KVS curriculum rules to help you achieve top marks.

Study Materials: Class 12 Computer Science - Constructors and Destructors

Try using this Class 12 Constructors and Destructors study material to boost your Computer Science knowledge beyond standard classroom textbooks. It offers structured summaries and answered questions to ensure Class 12 students master every core idea.

Class 12 Computer Science Constructors and Destructors Notes and Questions

Constructors and Destructors 
 
Constructor:- A constructor is a special member function with the same name as its class name and is used to initialize the data members of the class. Constructor is invoked automatically when an object of a class is created. Constructor do not return any value not even void. Constructor must be defined in public section.
 
Types of Constructors
 
1. Default Constructor (No argument constructor):- A default constructor accepts no parameters. When no constructor is defined in the class, compiler provides the default constructor.
 
2. Parameterized Constructor (Overloaded Constructor):- Parameterized constructor accepts parameters and is used to assign these parameters to the data members of the class. There may be many definitions of the parameterized constructor depending upon the type and number of parameters passed to the constructor and so it is also called overloaded constructor.
 
3. Copy Constructor:-A constructor that accepts a reference to an instance of its own class as an argument is called as Copy Constructor. A copy constructor is used to create new object with the similar values of existing object. A copy constructor is invoked when one object is defined and initialized with another object of the same class.
 
Syntax for declaration of copy constructor:-
classname(classname &obj)
for example:- Student(Student &s)
Class 12 Constructors and Destructors Revision Notes
 
Note 1 : When parameterized constructor is defined one must define the default constructor also, otherwise error may occur when a call to default constructor is made.
Note 2: When multiple constructors are defined for a class it is also known as constructor overloading.
 

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CBSE Class 12 Computer Science Study Material: Constructors and Destructors

Core Study Kit: Class 12 Computer Science Constructors and Destructors

Students can find all the important study material for Constructors and Destructors on this page. This collection includes detailed notes, Mind Maps for quick revision, and Sure Shot Questions that will come in your CBSE exams. This material has been strictly prepared on the latest 2026 syllabus for Class 12 Computer Science. Our expert teachers always suggest you to use these tools daily to make your learning easier and faster.

Understanding Marking Schemes with Solved Examples

Our teachers have used the latest official NCERT book for Class 12 Computer Science to prepare these study material. We have included previous year examination questions and also step-by-step solutions to help you understand the marking scheme too. After reading the above chapter notes and solved questions also solve the practice problems and then compare your work with our NCERT solutions for Class 12 Computer Science.

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For peak performance in upcoming Class 12 exams, integrate Computer Science Sample Papers directly into your study schedule alongside our chapter notes. Regular engagement with our interactive MCQ Tests for Constructors and Destructors drives notable improvements in testing speed and correctness. All study resources provided online are free and routinely refreshed to empower Class 12 students with total exam readiness.

FAQs

What is included in the advanced study material for Class 12 Computer Science Constructors and Destructors?

Our advanced study package for Constructors and Destructors includes detailed concepts, diagrams, Mind Maps, and explanation of complex topics to ensure Class 12 students learn as per syllabus for 2026 exams.

How do Mind Maps for Computer Science Constructors and Destructors help in revision?

The Mind Maps provided for Constructors and Destructors act as visual anchors which will help faster recall during high-pressure exams.

Are these Computer Science resources suitable for both classroom teaching and self-study?

Yes, teachers use our Class 12 Computer Science resources for lesson planning as they are in simple language and have lot of solved examples.

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Does this material cover rationalized content for the 2026-27 CBSE session?

Yes, our subject matter experts have updated the Constructors and Destructors material to align with the rationalized NCERT textbooks and have removed deleted topics and added new competency-based questions.