Interview Question and Answers | Search Coding Interview Questions

Interview Questions and Answers - Order By Rating

Q241. Explain life cycle of Spring Application ?

Ans. Instantiation by using:
InitializingBean callback interface.
Custom init() method from the bean configuration file.
Aware interfaces for distinct actions.
PostConstruct and PreDestroy annotations.
Destruction.
DisposableBean callback interface

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q242. What is a comparator ?

Core Java

Ans. Java Comparator compares two Java objects in a “compare(Object 01, Object 02)” format. Using configurable methods, Java Comparator can compare objects to return an integer based on a positive, equal or negative comparison

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q243. Why should we go for custom defined exceptions even if we have many exceptions provided already using throw keyword

Core Java

Ans. It gives us the liberty to throw the specific exceptions which are required and also we can control the handling of exceptions

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q244. What are the scenarios you consider in code reviews

General

Ans. https://www.evoketechnologies.com/blog/code-review-checklist-perform-effective-code-reviews/

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve clean code Asked in 1 Companies}

Q245. FInd the longest palindrome in a given string

^{This question was recently asked at 'Samsung India'.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 Asked in 1 Companies}

Q246. Find the duplicate numbers and missing numbers in a given array of n numbers

^{This question was recently asked at 'Samsung India'.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 Asked in 1 Companies}

Q247. How to find the duplicate elements in the list given

Ans. use collections.frequency() method to find out the frequency, if it is greater than 1 then it is a duplicate element.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q248. How to find if any employees address is null or not during Junit testing

JUnit

Ans. By using assertNotNull(employee_address)

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q249. Write a program to find the intersection of four rectangles provided.

^{This question was recently asked at 'Samsung India'.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 Asked in 1 Companies}

Q250. What are the disadvantages of Maven ?

Maven

Ans. Maven requires installation in the working system and the Maven plug-in for the IDE.
If the Maven code for an existing dependency is unavailable, you cannot add that dependency using Maven itself.
Some sources claim that Maven is slow.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q251. All the meaningful words that can be formed from a phone keypad

^{This question was recently asked at 'Oracle'.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 Asked in 1 Companies}

Q252. Difference between Tomcat and IBM Websphere.

Server

^{This question was recently asked at 'MagicBricks Noida'.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 Asked in 1 Companies}

Q253. How many threads can access a concurrent hashmap when the hashcode is overridden and always returns a zero.

Data Structure

Ans. The impact of both cases (fixed hashcode or random hashcode for keys) will have same result and that is "unexpected behavior". The very basic need of hashcode in HashMap is to identify the bucket location where to put the key-value pair, and from where it has to be retrieved.

If the hashcode of key object changes every time, the exact location of key-value pair will be calculated different, every time. This way, one object stored in HashMap will be lost forever and there will be very minimum possibility to get it back from map.

For this same reason, key are suggested to be immutable, so that they return a unique and same hashcode each time requested on same key object.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q254. Explain memory allocation and deallocation.

C++

^{This question was recently asked at 'Informatica'.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 Asked in 1 Companies}

Q255. What are reference variables in c

C++

^{This question was recently asked at 'Informatica'.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 Asked in 1 Companies}

Q256. What is size of structure in c ?

C++

^{This question was recently asked at 'Informatica'.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 Asked in 1 Companies}

Q257. what are system calls

Operating System

^{This question was recently asked at 'Informatica'.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 Asked in 1 Companies}

Q258. Differentiate osi and tcp/ip models and describe them

Networking

^{This question was recently asked at 'Informatica'.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 Asked in 1 Companies}

Q259. How to sort an ArrayList of objects

Data Structure

Ans. Using Collections.sort()

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q260. What is the O notation for the ArrayList and List? And which one would you choose to insert item in the middle?

Data Structure

^{This question was recently asked at 'ExpertSoft'.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 Asked in 1 Companies}

Q261. How to build applications and integrate with jenkins?

Jenkins

^{This question was recently asked at 'Capgemini India'.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 Asked in 1 Companies}

Q262. How does Garbage Collector work? What are the realizations of Garbage Collector.

Core Java

^{This question was recently asked at 'ExpertSoft'.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 Asked in 1 Companies}

Q263. How multiple catch block works ?

Core Java

^{This question was recently asked at 'Capgemini'.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 Asked in 1 Companies}

Q264. What is the use of toString method ?

Core Java

^{This question was recently asked at 'Jibe Technology Services'.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 Asked in 1 Companies}

Q265. What is ado.net ?

^{This question was recently asked at 'jibe development services'.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 Asked in 1 Companies}

Q266. What is a composite primary key and foreign key ?

Database

Ans. The combination of values from multiple columns in the composite primary key must be unique for each row in the table.
A foreign key, on the other hand, is a field or set of fields in one table that refers to the primary key in another table. It establishes a relationship between two tables based on the values of the foreign key and the primary key.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 1 Companies}

Q267. What is java machine control

^{This question was recently asked at 'HSBC Technology India'.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 Asked in 1 Companies}

Q268. what is green threads

^{This question was recently asked at 'HSBC Technology India'.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 Asked in 1 Companies}

Q269. what is dynamic method dispatch

^{This question was recently asked at 'HSBC Technology India'.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 Asked in 1 Companies}

Q270. What is SNMP ?

Networking

Ans. SNMP or Simple Network Management protocol is an application layer protocol for exchanging management information between network devices.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Asked in 15 Companies}

Search Interview Questions

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.