Merge pull request #51 from rpandox/feat/mult-levl-inheritance-q7

Feat/mult-levl-inheritance-q7

programs/Inheritance/Multilevel Inheritance/q7.cpp

@@ -0,0 +1,61 @@
+#include <iostream>
+using namespace std;
+
+// Base class
+class Base {
+public:
+    // Virtual function to enable dynamic dispatch
+    virtual void display() {
+        cout << "Display from Base class." << endl;
+    }
+
+    virtual ~Base() {
+        cout << "Base class destructor called." << endl;
+    }
+};
+
+// Intermediate derived class (inherits from Base)
+class Derived1 : public Base {
+public:
+    // Overriding the display function from Base class
+    void display() override {
+        cout << "Display from Derived1 class." << endl;
+    }
+
+    ~Derived1() {
+        cout << "Derived1 class destructor called." << endl;
+    }
+};
+
+// Final derived class (inherits from Derived1)
+class Derived2 : public Derived1 {
+public:
+    // Overriding the display function again
+    void display() override {
+        cout << "Display from Derived2 class." << endl;
+    }
+
+    ~Derived2() {
+        cout << "Derived2 class destructor called." << endl;
+    }
+};
+
+int main() {
+    // Base class pointer pointing to Derived2 object
+    Base* basePtr = new Derived2();
+
+    // Dynamic dispatch happens here - Derived2's display function is called
+    basePtr->display();
+
+    // Base class pointer pointing to Derived1 object
+    Base* basePtr2 = new Derived1();
+
+    // Dynamic dispatch happens here - Derived1's display function is called
+    basePtr2->display();
+
+    // Clean up: destructors will be called in reverse order
+    delete basePtr;
+    delete basePtr2;
+
+    return 0;
+}

programs/Inheritance/README.md

@@ -49,7 +49,7 @@
 - [x] [q4](./Multilevel%20Inheritance/q4.cpp): WAP to show multilevel inheritance where each class contains its own constructor and destructor.
 - [x] [q5](./Multilevel%20Inheritance/q5.cpp): WAP to demonstrate multilevel inheritance with virtual functions.
 - [x] [q6](./Multilevel%20Inheritance/q6.cpp): WAP to show multilevel inheritance where the derived class overrides methods from both intermediate and base classes.
-- [ ] [q7](./Multilevel%20Inheritance/q7.cpp): WAP to demonstrate multilevel inheritance with method overriding and dynamic method dispatch using pointers.
+- [x] [q7](./Multilevel%20Inheritance/q7.cpp): WAP to demonstrate multilevel inheritance with method overriding and dynamic method dispatch using pointers.
 
 ## Important