Initial commit

c++/Others/A base pointer to access derived objects.cpp

@@ -0,0 +1,34 @@
+A base pointer to access derived objects
+#include <iostream>
+using namespace std;
+class BaseClass {
+  int i;
+public:
+  void setInt(int num) { 
+    i = num; 
+  }
+  int getInt() { 
+    return i; 
+  }
+};
+class derived: public BaseClass {
+  int j;
+public:
+  void setJ(int num) { 
+     j = num; 
+  }
+  int getJ() { 
+     return j; 
+  }
+};
+int main()
+{
+  BaseClass *baseClassPointer;
+  derived d;
+  baseClassPointer = &d;     // BaseClass pointer points to derived object
+                             // access derived object using BaseClass pointer
+  baseClassPointer->setInt(10);
+  cout << baseClassPointer->getInt() << " ";
+
+  return 0;
+}