What is virtual method calling in java?

Question

Ive saw the next paragraph in some computer science test and i\'ll hope i can get here a good explanation of what it means because i googled it for an hour and can\'t find a

Answer 1

we mean that in java applications the executed method is determined by the object type in run time

interface Animal{
  public void eat();
}


class Person implements Animal{
   public void eat(){ System.out.println("Eating Food");}
}



class Eagle implements Animal{
   public void eat(){ System.out.println("Eating Snake");}
}

in main

Animal animal = new Person();
animal.eat(); //it will print eating food
animal = new Eagle();
animal.eat(); //it will print eating snake