🔹 Multiple Inheritance in C++

 

Multiple inheritance is a feature in C++ where a class can inherit from more than one base class. This allows the derived class to have functionalities from multiple parent classes.

---

📌 Basic Example of Multiple Inheritance

🚀 Approach

1. Class A → Has a function showA().
2. Class B → Has a function showB().
3. Class C (Derived from A & B) → Inherits both functions.

---

🔹 C++ Code: Basic Example of Multiple Inheritance

#include <iostream>
using namespace std;

// First Base Class
class A {
public:
    void showA() {
        cout << "This is Class A" << endl;
    }
};

// Second Base Class
class B {
public:
    void showB() {
        cout << "This is Class B" << endl;
    }
};

// Derived Class from A and B
class C : public A, public B {
public:
    void showC() {
        cout << "This is Class C" << endl;
    }
};

int main() {
    C obj;
    obj.showA();  // Inherited from A
    obj.showB();  // Inherited from B
    obj.showC();  // Defined in C
    return 0;
}

---

🔹 Output

This is Class A
This is Class B
This is Class C

---

📌 Addition using Multiple Inheritance

🚀 Approach

1. Class Num1 → Stores first number.
2. Class Num2 → Stores second number.
3. Class Sum (Derived from Num1 & Num2) → Computes the sum.

---

🔹 C++ Code: Addition using Multiple Inheritance

#include <iostream>
using namespace std;

// First Base Class
class Num1 {
protected:
    int num1;
public:
    void setNum1() {
        cout << "Enter first number: ";
        cin >> num1;
    }
};

// Second Base Class
class Num2 {
protected:
    int num2;
public:
    void setNum2() {
        cout << "Enter second number: ";
        cin >> num2;
    }
};

// Derived Class from Num1 and Num2
class Sum : public Num1, public Num2 {
public:
    void displaySum() {
        cout << "Sum = " << num1 + num2 << endl;
    }
};

int main() {
    Sum obj;
    obj.setNum1();
    obj.setNum2();
    obj.displaySum();
    return 0;
}

---

🔹 Example Output

Enter first number: 5
Enter second number: 10
Sum = 15

---

📌 Explanation

1. Num1 class → Takes first number.
2. Num2 class → Takes second number.
3. Sum class (inherits Num1 & Num2) → Adds both numbers.

🔹 Multiple inheritance is useful when combining functionalities from different classes!

🚀 Let me know if you need more examples! 🚀