Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


interface X{
void m1();
void m2();
}

class Child2 extends Object implements X {

public void m1(){
System.out.println("Child2 M1");
}
public void m2(){
System.out.println("Child2 M2");
}

}
public class ParentChildInfterfaceDemo {

public static void main(String[] args){
X x = new Child2();
X x1 = new Child2();
x.m1();
x.m2();
x.equals(x1);
}

}
Will the above code work?
If yes? Can you please explain why the code
x.equals(x1) will work as the equals method is called on
interface reference vaiable?

Answers were Sorted based on User's Feedback



interface X{ void m1(); void m2(); } class Child2 extends Object implements X { public v..

Answer / satish

this code is working.because of the reason is interface reference variable is store address of implemented class objects like
X x=new Child2{}
X x1=new Child2{}
above code means create two reference variables are created to interface and store address of implemented class objects.

actually equals method is using compare two strings.
but this senario
x.equals(x1) compare the two objects references .above code returns false

Is This Answer Correct ?    4 Yes 0 No

interface X{ void m1(); void m2(); } class Child2 extends Object implements X { public v..

Answer / mayank sharma

no answer will be possible of this question

Is This Answer Correct ?    1 Yes 0 No

Post New Answer

More Core Java Interview Questions

. Differentiate between instance and local variables.

1 Answers  


Can we define static methods inside interface?

0 Answers  


Suppose i have two threads t1 and t2 are running.How the main thread will know that the two threads t1,t2 execution has completed?

2 Answers   Subex,


What is the meaning of variables in research?

0 Answers  


Name container classes in java programming?

0 Answers  


Explain constructors and types of constructors in java.

0 Answers  


What is a J2EE component? List out all the component?

2 Answers   Adobe,


What is finalize method?

0 Answers  


Is a method a function?

0 Answers  


How to set the permissions to a file in java?

0 Answers  


What is the new line character?

0 Answers  


What is meant by the value of a variable?

0 Answers  


Categories