Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Please consider the below piece of code:
HashSet hs = new HashSet();
hs.add("hi"); -- (1)
hs.add("hi"); -- (2)
hs.size() will give 1 as HashSet doesn’t allow duplicates so only one element will be stored.
I want to know if we add the duplicate element, then does it replace the previous element or it simply doesn’t add it?
Also, what will happen usingHashMap for the same case?
In the case of
HashMap, it replaces the old value with the new one.In the case of
HashSet, the item isn’t inserted.