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

Suppose you have a class Fruit, with two subclasses Orange and Banana. And suppose that Fruit has a String getColor() method.

Orange can override the getColor() method to return "orange". Same for Banana, which can have it return "yellow".

When some method uses an object of type Fruit, and call the getColor() method, the method that will be called is Banana.getColor() if the type of the Fruit is in fact Banana.

 private void printColor(Fruit f) {
     System.out.println(f.getColor());
 }

 ...

 Fruit fruit1 = new Banana();
 Fruit fruit2 = new Orange();
 printColor(fruit1); // prints yellow
 printColor(fruit2); // prints orange