class A{
  public void fun1(int x){
     System.out.println("int in Class A is : "+ x);
  }
}

class B extends A{
  public void fun1(int x){
     System.out.println("int in Class B is : "+ x);
  }
}

public class polytwo{
  public static void main(String[] args){
     A obj;
     
     obj= new A(); // line 1
     obj.fun1(2);  // line 2 (prints "int in Class A is : 2")
     
     obj=new B();  // line 3
     obj.fun1(5);  // line 4 (prints ""int in Class B is : 5")
  }
}