public class test {
   public static void main(String[] args) {
       A p = new B();
       p.getA();
       System.out.println(p.a);
       p.print();
   }
}

class A {
  String a = "A";

   String getA() {
       return this.a;
   }

   protected void print(){
       System.out.println(a);
   }
}

class B extends A{
  String a = "B";

   @Override
   public  void print(){
       System.out.println(a);
   }
}