class Base
   {
   public:
      void show()
         { cout << "\nBase";}
   };

class Derv1 : public Base
   {
   public:
      void show()
         { cout << "\nDerv1";}
   };

class Derv2 : public Base
   {
   public:
      void show()
         { cout << "\nDerv2";}
   };

void main()
   {
   Derv1 dv1;
   Derv2 dv2;
   Base* ptr;

   ptr = &dv1;
   ptr->show();

   ptr = &dv2;
   prt->show();
   }

class Base{
  public void draw(){
        System.out.println("Drawing Base");
}
}
 
class A extends Base{
	public void draw(){
		System.out.println("Drawing A");
	}
}
 
class B extends Base{
	public void draw(){
		System.out.println("Drawing B");
	}
}
 
public class JavaVirt{
	public static void main (String args[]){
		Base baseA = new A();
		Base baseB = new B();
		baseA.draw();
		baseB.draw(); 
	}
}