Answer / bal

Method overriding is run time poly

Answer / haridini

At run time it is decided that which version of the same
method should be used. Its basically concept of over
riding.And a very powerful mechanism which is implemented
in java.

Answer / vijayakumar chinnasamy

Method overrrideing is the runtime polymorphism.The
class's "object" only determine which method to called .
eg:
class SuperClassTest
{
public void display(){
System.out.println("Super class");
}
}
class SubClassTest extends SuperClassTest
{
public void display(){
System.out.println("Sub class");
}
}
public class TestPro {



public static void main(String[] args) {

SuperClassTest sub=new SubClassTest();
System.out.print("I am Calling
subclasstest's display() method: ");
sub.display();

SuperClassTest sup=new SuperClassTest();
System.out.print("I am Calling
superclasstest's display() method: ");
sup.display();
}

}


o/p:

I am Calling subclasstest's display() method: Sub class
Note: object is type of SubClassTest
I am Calling superclasstest's display() method: Super class
Note: object is type of SuperClassTest

Note:
Method overloading is compile time polymorphism.The
class "reference" type determine which method to be called.

Answer / guest

In Runtime polymorphism the JVM will decide which version
of the method supposed to used.

for example
class Animal{
public void speak(){
System.out.println("Animal speak method callinfg");
}
}

public class Dog extends Animal{
public void speak(){
System.out.println("Dog speak method calling");
}

public static void main(String args[]){

Animal a = new Dog();

a.speak();// u r calling now Animal class speck metod.
}
}
here JVM will decide to execute Dog version of speck
method . This is called runtime polimorphism

thanks
prasad thota

Answer / tntrichy

Hi Bal, Virtual Function concept in Java, i.e, assigning
sub-class object in super-class's reference.

Answer / ravikiran

overriding

what is the use of Clonable,and serializable interface?

1 Answers  

What are the features of java?

0 Answers  

what is the difference between static class and singleton class? can we create static class?

2 Answers   L&T, Octazen, Vamsi Labs,

if we give input as " hi how are you" then the output should be "uoy woh"...it should skip odd words in the input and should reverse even words from the end of string...can anyone help me to write this program in java

1 Answers  

class{ ... ... interface myinterface{ ... ... } abstract class{ .. .. } ... .. .. } is this possible to write "Interface and/ or Abstract class inside a class ? if possible whcich one is possible is only interface? is only abstract?

2 Answers   Logica CMG,

How to know the host from which Applet is originated?

1 Answers   Wipro,

What is the purpose of finalization?

4 Answers  

When we serialize an object does the serialization mechanism saves its references too?

0 Answers  

Can you create an object of an abstract class?

0 Answers  

What is hashing in java?

0 Answers  

What are different types of multitasking?

0 Answers  

What is the use of list in java?

0 Answers