some more content

OOP/inheritance/Vehicle.cpp

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+#include <iostream>
+
+using namespace std;
+
+class Vehicle {
+    public:
+        string brand = "Ford";
+        void honk() {
+            cout << "Honk Honk!";
+        }
+};
+
+class Car: public Vehicle {
+    public:
+    string model = "Mustang";
+};
+
+int main() {
+    Car myCar;
+    myCar.honk();
+    cout << myCar.brand + " " + myCar.model << "\n";
+    return 0;
+}