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?
- 2 Answers
- 4834 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
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 |
Answer / mayank sharma
no answer will be possible of this question
| Is This Answer Correct ? | 1 Yes | 0 No |
What is contract between hashcode and equal method?
What are basic keywords?
When a thread is executing a synchronized method , then is it possible for the same thread to access other synchronized methods of an object ?
How to remove the trailing spaces from a string?
Write a program to find the greatest of three numbers in java?
what are the boundaries of jdk and jre?
string is immutable? right every one knows that, my question is it advantage or disadvantage making string immutable?
What is the difference between replace and replace all?
Explain the difference between an object-oriented programming language and object-based programming language?
What are the parts of a method?
How Marker Interfaces are instruct to complete the desired need ?
Explain the importance of thread scheduler in java?
Core Java 
