Merge pull request #642 from pushpakumari5117/issue-328

Added the code for Protected Inheritance in C++

Author: Saviour1001

OOPs/Inheritance/Protected_Inheritance_cpp.cpp

@@ -0,0 +1,48 @@
+// C++ program to demonstrate Protected Inheritance
+
+// Protected Inheritance - It is defined as the inheritance in which public members of the base class becomes protected members
+// of the derived class and also the protected members of the base class becomes protected members of the derived class.
+
+//Note : Private members are not inherited.
+
+#include<bits/stdc++.h>
+using namespace std;
+
+// base class
+class Animal{
+   private:
+   void info(){
+       cout<<"I am an animal !!"<<endl;
+   }
+   protected:
+   void sleep(){
+        cout<<"I can sleep!"<<endl;
+    }
+   public:
+    void eat(){
+        cout<<"I can eat!"<<endl;
+    }
+};
+
+// derived class
+class Cat:protected Animal{
+   public:
+    void animal_info(){
+       sleep();
+       eat();
+    }
+    void meow(){
+        cout<<"I can meow! meow! meow!"<<endl;
+    }
+};
+
+int main(){
+    // Create object of the Cat class
+    Cat cat1;
+    // Calling public and protected members of the base class through derived class function
+    // Note : Only derived class can access the member functions and data members of the base class in case of protected inheritance.
+    cat1.animal_info();
+    // Calling member of the derived class
+    cat1.meow();
+    return 0;
+}