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diff --git a/Bachelor/Prog1/examples/ch07/Fig07_12/Fig07_12.cpp b/Bachelor/Prog1/examples/ch07/Fig07_12/Fig07_12.cpp
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+// Fig. 7.12: fig07_12.cpp 
+// Non-friend/non-member functions cannot access
+// private data of a class.
+#include <iostream>
+
+using std::cout;
+using std::endl;
+
+// Count class definition
+class Count {
+
+public:
+  
+   // constructor
+   Count()
+      : x( 0 )  // initialize x to 0
+   { 
+      // empty body
+   
+   } // end constructor Count
+
+   // output x 
+   void print() const       
+   { 
+      cout << x << endl; 
+
+   } // end function print
+
+private:
+   int x;  // data member
+
+}; // end class Count
+
+// function tries to modify private data of Count,
+// but cannot because function is not a friend of Count
+void cannotSetX( Count &c, int val )
+{
+   c.x = val;  // ERROR: cannot access private member in Count
+
+} // end function cannotSetX
+
+int main()
+{
+   Count counter;            // create Count object
+
+   cannotSetX( counter, 3 ); // cannotSetX is not a friend
+
+   return 0;
+
+} // end main
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
+ * Hall. All Rights Reserved.                                             *
+ *                                                                        *
+ * DISCLAIMER: The authors and publisher of this book have used their     *
+ * best efforts in preparing the book. These efforts include the          *
+ * development, research, and testing of the theories and programs        *
+ * to determine their effectiveness. The authors and publisher make       *
+ * no warranty of any kind, expressed or implied, with regard to these    *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or       *
+ * consequential damages in connection with, or arising out of, the       *
+ * furnishing, performance, or use of these programs.                     *
+ *************************************************************************/