8.9 Polymorphism | OOPs | Method Overriding

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Polymorphism in java is a concept by which we can perform a single action by different ways.
Polymorphism is derived from 2 greek words: poly and morphs.
The word "poly" means many and "morphs" means forms.
So polymorphism means many forms.

There are two types of polymorphism in java:
compile time polymorphism and
runtime polymorphism.
We can perform polymorphism in java by method overloading and method overriding.

The implementation in the subclass overrides (replaces) the implementation in the superclass by providing a method that has same name, same parameters or signature, and same return type as the method in the parent class

Method overriding is used to provide specific implementation of a method that is already provided by its super class.

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[evandawson]

Method overloading and overriding, you made it absolute clear! Thanks so much

[rasikadeshpande]

Really you teach very very well. Thanks. Pls tell me real time example of constructor IN application

[divyeshkumarbalar]

can we call super.show() from the same method in sub

[rohitkumar-buzn]

do you think as i get job after learning java

[yashureddy]

Where we should have to use this overriding

[siddharthbhandari]

sir, in method overriding cases you haven;t taken any example with method with parameter, if this could have included then every concept was fine anyway it;s good video

[Some]

did u do any for recursion ? if not please do it 

[nareshshama]

i got an error when tried to call from main method by creating of object of b class
public class Test2016 {

public static void main(String[] args) {

b obj= new b(); : Here i got an error (Exception in thread "main" java.lang.Error: Unresolved compilation problem:
No enclosing instance of type Test2016 is accessible. Must qualify the allocation with an enclosing instance of type Test2016 (e.g. x.new A() where x is an instance of Test2016).

at
)


}

class a {

public void eat(){

System.out.println("a is eting");
}
}

class b extends a{

public void eat(){


}
}

}

[meenakshitomar]

sir, why is it called dynamic binding?

[yashureddy]

Where we should have to use this overriding

[yashureddy]

Where we should have to use this overriding