Java Method Overriding

Declaring a method in subclass which is already present in parent class is known as method overriding.

Example:

One of the simplest example – Here Boy class extends Human class. Both the classes have a common method void eat(). Boy class is giving its own implementation to the eat() method or in other words it is overriding the method eat().

class Human 

{
   public void eat()
   {
      System.out.println("Human is eating");
   }
}
class Boy extends Human 

{
   public void eat()//Same name

   {
      System.out.println("Boy is eating");
   }
   public static void main( String args[]) {
      Boy obj = new Boy();
      obj.eat();
   }
}

OUTPUT:

Boy is eating 

The main advantage of method overriding is that the class can give its 
own specific implementation to a inherited method without even modifying

the parent class(base class).