Answers for "If you use a base class reference to call an abstract method implemented by a derived class, what concept have you just demonstrated?"

abstract class example in java

//abstract parent class
abstract class Animal{
   //abstract method
   public abstract void sound();
}
//Dog class extends Animal class
public class Dog extends Animal{

   public void sound(){
	System.out.println("Woof");
   }
   public static void main(String args[]){
	Animal obj = new Dog();
	obj.sound();
   }
}

Posted by: Guest on November-11-2020

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