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. |
|
| ||||
Interview Questions and Answers for 'Centurylink' - 6 question(s) found - Order By Newest | ||||
Frequently asked in high end product companies. Frequently asked in Deloitte. | ||||
| ||||
Ans. https://medium.com/javarevisited/internal-working-of-hashmap-in-java-97aeac3c7beb#:~:text=HashMap%20internally%20uses%20HashTable%20implementation,the%20entries%20into%20the%20map. | ||||
Help us improve. Please let us know the company, where you were asked this question : | ||||
Like Discuss Correct / Improve  hashmap  collections  hashmap internal implementation Asked in 20 Companies expert   frequent | ||||
| ||||
Ans. Hashcode is used for bucketing in Hash implementations like HashMap, HashTable, HashSet etc. | ||||
Help us improve. Please let us know the company, where you were asked this question : | ||||
Like Discuss Correct / Improve  java   string   hashcode   hash code   string comparison  hashtable Asked in 17 Companies basic   frequent | ||||
Very frequently asked. Usually followed by questions related to private constructor and synchronized access. Frequently asked in JPMorgan and TCS (Based on 2 feedback) | ||||
| ||||
Ans. http://www.buggybread.com/2014/03/java-design-pattern-singleton-interview.html | ||||
Help us improve. Please let us know the company, where you were asked this question : | ||||
Like Discuss Correct / Improve  java   design pattern   singleton   at&t   ebay  fidelity india  united healthcare india Asked in 46 Companies intermediate   frequent | ||||
| ||||
Ans. Shutdown hook is a thread that is invoked implicitly by JVM just before the shut down. It is used to clean up unused resources. | ||||
Help us improve. Please let us know the company, where you were asked this question : | ||||
Like Discuss Correct / Improve   Asked in 3 Companies | ||||
| ||||
Ans. public class Class{ public static void main(String[] args){ String str = "xyz@123.com"; if(!str.contains("@") && !str.contains(".") && (str.indexOf('.') < str.indexOf('@'))){ System.out.println("Not a Valid Email Address"); } } } | ||||
Help us improve. Please let us know the company, where you were asked this question : | ||||
Like Discuss Correct / Improve  validate an email address  coding  code Asked in 3 Companies | ||||
| ||||
This question was recently asked at 'CenturyLink'.This question is still unanswered. Can you please provide an answer. | ||||
Help us improve. Please let us know the company, where you were asked this question : | ||||
Like Discuss Correct / Improve  reflection Asked in 1 Companies | ||||