From e14ee4976831ee63fd9766f309e1013524b6d4de Mon Sep 17 00:00:00 2001
From: Roshan Pandey <88703488+rpandox@users.noreply.github.com>
Date: Wed, 23 Oct 2024 00:11:51 +0545
Subject: [PATCH] feat: add the question number 7 in multilevel inheritance and
 tick the corresponding part

---
 .../Inheritance/Multilevel Inheritance/q7.cpp | 61 +++++++++++++++++++
 programs/Inheritance/README.md                |  2 +-
 2 files changed, 62 insertions(+), 1 deletion(-)
 create mode 100644 programs/Inheritance/Multilevel Inheritance/q7.cpp

diff --git a/programs/Inheritance/Multilevel Inheritance/q7.cpp b/programs/Inheritance/Multilevel Inheritance/q7.cpp
new file mode 100644
index 0000000..55df8cb
--- /dev/null
+++ b/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;
+}
diff --git a/programs/Inheritance/README.md b/programs/Inheritance/README.md
index cbbbcb6..a91c2b6 100644
--- a/programs/Inheritance/README.md
+++ b/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