INHERITANCE - Object-Oriented Programming (OOP) Inheritance என்பது OOP-ன் முக்கியமான concepts-ல் ஒன்ற……
INHERITANCE – Object-Oriented Programming (OOP)
Inheritance is the mechanism by which one class acquires the properties and behaviors of another class. தமிழில்: ஒரு class-ல் இருக்கும் data members மற்றும் member functions-ஐ மற்றொரு class பெறும் OOP mechanism தான் Inheritance. Simple for…
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52 programs 12 MCQs v4
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Definition
Inheritance is the mechanism by which one class acquires the properties and behaviors of another class. தமிழி……
Simple Explanation
ஒரு Person class இருக்கிறது என்று வைத்துக்கொள்வோம். Person name age display() இப்போது Student என்பதும் ஒரு Pe……
Real Life Example
Consider: Vehicle Vehicle-க்கு: speed colour start() stop() இப்போது: Car Bike Bus இவை அனைத……
Important
Important terms
Inheritance-ல் இரண்டு முக்கிய……
Base Class
Important
எந்த class-லிருந்து properties inherit செய்யப……
Derived Class
Important
Base class-ன் properties-ஐ inherit செய்யும் class: Derived ……
Explanation
Example
Person ↓ Student இதில்: Person → Ba……
Program
Example
Explanation
இதில்: Student → Derived class Person → ……
Explanation
string name;…
Explanation
int mark;…
Explanation
return 0; }…
Explanation
Base Class class Person Person என்பது base class. Inside: string name; name என்பது Person class-ன் data membe……
Dry Run
Object: Student s1; உருவாகிறது. Student class-க்கு அதன் own member: mark displayMark() இருக்கிறது. Inheritanc……
WHY INHERITANCE?
Explanation
Inheritance ஏன் பயன்படுத்த வே……
1. Code Reusability
Explanation
Already written code-ஐ மீண்டும் பயன்படுத்தலாம். Without inheritance: Person name Student name Teacher name Em……
2. REDUCES CODE DUPLICATION
Explanation
Repeated code குறையும். Without inherit……
3. EASY MAINTENANCE
Explanation
Base class-ல் common functionalit……
4. EXTENSIBILITY
Explanation
Existing class-ஐ modify செய்ய……
Explanation
Example
Vehicle ↓ ElectricCar Vehicle……
SUPPORTS POLYMORPHISM
Explanation
Inheritance runtime polymorphism-க்கு முக்கிய foundation. Especially: Base class pointer + Virtual function +……
Explanation
Exam-க்கு மிக முக்கியம்.…
Explanation
Types of inheritance
C++-ல் inheritance பல வகைகள் ……
Explanation
1. Single Inheritance 2. Multilevel Inheritance 3. Multi……
Explanation
ஒரு derived class ஒரு base clas……
Explanation
return 0; }…
MULTILEVEL INHERITANCE
ஒரு class இன்னொரு class-ஐ inherit ச……
Explanation
Example
LivingThing | Animal | Dog…
Program
EXAMPLE
Explanation
Son object: Son s; Grandfathe……
MULTIPLE INHERITANCE
Explanation
ஒரு derived class இரண்டு அல்லது அதற்கு மேற்பட்ட ba……
Explanation
return 0; }…
HIERARCHICAL INHERITANCE
ஒரு base class-லிருந்து multi……
Explanation
Example
Animal / \ Dog Cat…
Program
EXAMPLE
Explanation
Both: Dog d; Cat c; can use: ……
HYBRID INHERITANCE
Explanation
Two or more inheritance types combination ஆக இருப்பது: Hybrid Inheritance A / \ B C \ / D இதில் hierarchical ……
Explanation
and…
Explanation
என்று பயன்படுத்தி diamond duplication-ஐ avoid செய்யலாம். ……
List
1. public inheritance 2. prot……
Program
Example
Explanation
Suppose Base contains: public……
Program
Then
Program
Then
Explanation
Then: Base public → Derived private Base protected ……
Explanation
இந்த table TRB/NET MCQ-க்கு மிகவும் முக்……
Program
Derived class
Explanation
B object-க்குள் base subobjec……
Explanation
என்று directly access செய்ய முடியாது. HOW TO……
Program
Example
Explanation
int x; public:…
Explanation
Derived object: B b; b.setX(10); பயன்படுத்த முடியும், ass……
Explanation
int x; }; Derived class:…
Explanation
இது valid. ஆனால் outside: B b; b.x = 20; invalid. PUBLIC vs PROTECTED vs PRIVATE public → Everyone with acces……
Program
Example
Explanation
Object: B obj;…
Derived object உருவாகுவதற்கு முன்னால் அதன் base portion properly initialize ஆக வேண்டும். Flow: Base Construct……
Program
Derived
Then: Dog d; d.eat(); valid. ……
Program
Derived
Dog d; d.sound();…
இது function overriding-ன் basic idea. V……
Comparison
Inheritance vs Encapsulation
Comparison
Memory: Encapsulation → Wrap ……
Important
Inheritance பற்றிய முக்கிய points: Inheritance supports code reusability. Existing class = Base class. New cl……
Common Mistake
Error 1
Wrong inheritance syntax Wrong: class ……
Common Mistake
Error 2
Direct access to private base member class A { private……
Common Mistake
Error 3
Confusing IS-A with HAS-A Car IS-A Vehicle Co……
Common Mistake
Error 4
Thinking derived class gets unrestricted access Inheritan……
Remember
Inheritance = Receive Child class: Receives/reuses features from Parent class Another trick:……
TRB Point
Question 1
What is inheritance? Answer: Inheritance is the mecha……
TRB Point
Question 2
Which OOP feature provides co……
TRB Point
Question 3
The class whose properties ar……
TRB Point
Question 4
The class that inherits anoth……
TRB Point
Question 5
Inheritance represents which ……
TRB Point
Question 6
Does C++ support multiple inh……
TRB Point
Question 7
Which access specifier is main……
TRB Point
Question 8
Which constructor executes fi……
TRB Point
Question 9
Which destructor executes fir……
Interview Point
What is inheritance? Inheritance is an OOP mechanism in which a derived class acquires and extends the access……
MCQ
Which OOP feature provides re……
MCQ
A class whose members are inh……
MCQ
A class that inherits another……
MCQ
Which relationship is represe……
MCQ
Which is correct syntax?…
MCQ
Which inheritance has one bas……
MCQ
One derived class inheriting ……
MCQ
One base class with many deri……
MCQ
A → B → C represents:…
MCQ
Which C++ access level allows a derived class t……
MCQ
Constructor execution order i……
MCQ
Destructor execution order is:…
Practice
Consider: class Person { public: string name; }; class Student : public Person { public: int mark; }; Identif……
Summary
INHERITANCE | |-- OOP Concept | |-- Code Reusability | |-- Base Class | |-- Derived Class | |-- IS-A Relation……
Explanation
Short description
Inheritance என்பது ஒரு existing Base Class-ன் accessible properties மற்றும் member functions-ஐ Derived Class ……
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