Simple Inheritance

#include <iostream>
using namespace std;

class Device {
public:
   void printType(){printf("Generic Device\n");}
};

class Sensor : public Device{
   public:
   void printSensor(){printf("Sensor Device\n");}
};

int main() {
   Sensor s;
   s.printType();    // inherited method
   s.printSensor();  // derived method
   return 0;
}