ENCAPSULATION - Object-Oriented Programming (OOP) Encaps……
ENCAPSULATION – Object-Oriented Programming (OOP)
Encapsulation என்பது: Data and the functions that operate on that data are wrapped together into a single unit called a class. தமிழில்: Data மற்றும் அந்த data-வை operate செய்யும் functions-ஐ ஒரே Class-க்குள் ஒன்றாக சேர்த்து வைத்திருப்பது E…
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25 programs 10 MCQs v3
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Algorithm
1. Class 2. Object 3. Encapsula……
Definition
Encapsulation என்பது: Data and the functions that operate on that data are wrapped together into a single uni……
Simple Explanation
ஒரு BankAccount எடுத்துக்கொள்வோம். Bank account-ல்: Data: balance accountNumber customerName Operations: depo……
Flow
Encapsulation எப்படி work ஆகிறது? Data + Methods ↓ Combin……
Explanation
Example
balance + deposit() + withdraw(……
Real Life Example
Basic example
class Student { public: int m……
Program
ஒரு proper encapsulation example
Explanation
int mark; public:…
Explanation
s1.setMark(90);…
Explanation
return 0; }…
Explanation
Class Declaration class Student Student என்ற class create செய்யப்படுகிறது. இந்த class தான் encapsulation-க்கு……
Output
Result
External program: Directly mark access X setMark() getMark() ✓ DATA HIDING Encapsulation மற்றும் Data Hiding ……
Remember
Encapsulation = Wrapping Data Hiding = Restricting Access REAL-TIME EXAMPLE - BANK ACCOUNT Suppose: class Ban……
Program
Example
Explanation
Now: s1.setMark(90); valid. But: s1.setMark(500); invalid.……
Data Protection
Explanation
Private data-ஐ direct access ……
Controlled Access
Explanation
Functions மூலம் data access ச……
Validation
Explanation
Incorrect values prevent செய்……
Program
Example
Maintainability
Explanation
Internal implementation மாற்ற……
Security
Explanation
Sensitive data protected ஆக இ……
Modularity
Explanation
ஒவ்வொரு class-மும் தனித்த mod……
Code Organization
Explanation
Related data and methods ஒரே இடத்தில் இருக்கும். GETTER AND SETTER ……
Program
Example
Explanation
Private value read செய்ய பயன்……
Program
Example
Explanation
int age; public:…
Explanation
p1.setAge(25);…
Explanation
return 0; }…
Program
Suppose
Then: p1.age = -100; valid C++ statement ஆகிவிட……
data integrity protect செய்யப்படும். ACCESS SPECI……
Algorithm
1. private 2. protected 3. pu……
PRIVATE private: Class வெளியி……
Explanation
Example
private: int salary; PUBLIC public:……
Program
Example
Explanation
Class வெளியிலிருந்து directly access செய்ய முடியாது. ஆனால் derived classes-ல்……
Program
Example
Program
இங்கே
Explanation
even though private: எழுதவில்……
Remember
class Student { private: int mark; public: void setMark(int m) { mark = m; } }; இதில்: Class ↓ Encapsulates ↓……
Comparison
Encapsulation vs Abstraction ……
Comparison
Memory: Encapsulation → Wrap Abstraction → Hide complexity SIMPLE EXAMPLE Consider ATM. Encapsulation: Accoun……
Program
Example
Explanation
Object: Account a1; a1 அந்த encaps……
Explanation
string password; public:…
Explanation
Outside user: u1.password = "1234"; direct access செய்ய முடியாது. This provides controlled access. BUT IMPORT……
Important
Encapsulation-ல் நினைவில் கொள்ள வேண்டிய points: Encapsulation என்பது Data + Methods wrapping. Class encapsula……
Common Mistake
Error 1
Private data direct access class Student { privat……
Common Mistake
Error 2
Getter/Setter பெயரை பார்த்து மட்டும் assume செய்வது Technically function: void setMa……
Common Mistake
Error 3
Encapsulation = Data Hiding என்று மட்டும் சொல்வது Incorrect incomplete idea. B……
Common Mistake
Error 4
Encapsulation = Abstraction என்று சொல்வது இவை related. ஆனால் sa……
Memory Trick
ஒரே line: Encapsulation = Capsule Capsule எப்படி: Many things ↓ One cover Encapsulation:……
TRB Point
Question 1
What is encapsulation? Answer: Wrapping……
TRB Point
Question 2
Which OOP feature combines da……
TRB Point
Question 3
Which construct is commonly use……
TRB Point
Question 4
Which access specifier provid……
TRB Point
Question 5
What is the default access sp……
TRB Point
Question 6
What is a getter? Answer: A member……
TRB Point
Question 7
What is a setter? Answer: A memb……
Interview Point
What is encapsulation? Encapsulation is the bundling of data and the methods operating on that data into a si……
Program
Example
Explanation
Data and function are still grouped into a class.……
MCQ
Encapsulation means:…
MCQ
Encapsulation is mainly imple……
MCQ
Which access specifier restri……
MCQ
Which function is normally us……
MCQ
Which function normally modif……
MCQ
Which statement best describe……
MCQ
Encapsulation helps:…
MCQ
Default access specifier of C……
MCQ
Which concept is associated w……
MCQ
Encapsulation and abstraction……
Practice
Study this program: class Employee { private: int salary; public: void setSalary(int s) { if(s > 0) { salary ……
Summary
ENCAPSULATION | |-- OOP Concept | |-- Data + Methods | |-- Wrapped into one unit | |-- Usually implemented us……
Explanation
Short description
Encapsulation என்பது data members மற்றும் அவற்றை operate செய்யும் member functions-ஐ ஒரே class-க்குள் wrap செ……
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