[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More
Experts Exchange Solution brought to you by
"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.
I understood that india printed only once as we have not implemented hashCode and due to that hashCode different for india1 and india2 object so wont bother to check equals.
Now you must be wondering even through two objects are equal why HashSet contains two values instead of one.This is because First HashSet calculates hashcode for that key object, if hashcodes are same then only it checks for equals method and because hashcode for above two country objects uses default hashcode method,Both will have different memory address hence different hashcode.
result = prime * result + ((name == null) ? 0 : name.hashCode());
Open in new window
Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.
From novice to tech pro — start learning today.
Premium members can enroll in this course at no extra cost.