✅ Definition:

Destructor ek special function hota hai jo automatically call hota hai jab object destroy hota hai (ya program end hota hai).

🔧 Purpose:

📌 Important Points:

Feature Value
Function Name ~ClassName() (tilde + class name)
Return Type ❌ None (no return type, not even void)
Arguments ❌ Nahi leta (no parameters)
Call Timing Automatically call hota hai jab object delete hota hai

🔧 Syntax:

cpp
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class ClassName {
  public:
    // Destructor
    ~ClassName() {
        // Cleanup code
    }
};

🧪 Example:

cpp
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#include<iostream>
using namespace std;

class Student {
  public:
    Student() {
        cout << "Constructor called" << endl;
    }

    ~Student() {
        cout << "Destructor called" << endl;
    }
};

int main() {
    Student s1;   // Constructor called
    // At the end of main(), object s1 will be destroyed
    return 0;     // Destructor automatically called here
}

🟢 Output:

sql
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Constructor called
Destructor called

📂 Destructor Real-Life Example:

Real Life Programming
Tum room me aaye Constructor called
Tum room se chale gaye Destructor called (lights off, clean up)