Search Interview Questions
| More than 3000 questions in repository.|
There are more than 900 unanswered questions.
Click here and help us by providing the answer.
Have a video suggestion.
Click Correct / Improve and please let us know.
|Core java - Interview Questions and Answers for 'Hortonworks' - 1 question(s) found - Order By Newest|
|Very frequently asked. Usually asked with questions related to String. Frequently asked at CTS / Cognizant|
|Ans. Object that can't be changed after instantiation.|
|Help us improve. Please let us know the company, where you were asked this question :|
|Like Discuss Correct / Improve  java   oops   immutable  immutability Asked in 27 Companies basic   frequent|
Try 2 Question(s) Test
|Why is String immutable in Java ?|
|Why Char array is preferred over String for storing password?|
|How does making string as immutable helps with securing information ? How does String Pool pose a security threat ?|
|How is string object immutable if we can concat a string to it ?|
|How to implement an immutable class ?|
|What is an immutable class ?|
|Does Declaring an object "final" makes it immutable ?|
|What are stateless objects ? How are they different from immutable objects ? Which of these two is thread safe ?|
|What are advantages of stateless and / or immutable objects ?|