Interview Question and Answers | Search Coding Interview Questions

Interview Questions and Answers - Order By Newest

Q2421. How can we make sue that only 1 object gets created ?

Design

Ans. We can use Singleton Design Pattern.

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

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

Q2422. Why do want to leave your current job ?

General

^{This question was recently asked at 'Spillman Technologies'.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}

Q2423. What is Dynamic Binding ?

Core Java

Ans. Dynamic Binding happens at runtime. Method overriding is an example of Dynamic Binding

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

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

Q2424. How do we do Inheritance in Java ?

Core Java

Ans. By extending class or implementing interface.

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

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

Q2425. Difference between 32 bit and 64 bit JVM ?

Core Java

^{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}

Q2426. What is optimistic and pessimistic locking ?

Operating System

^{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}

Q2427. In Case of multi layered application, If DAO layer throws an exception , How will you handle it upstream ?

Design

^{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}

Q2428. Tell about shallow and deep cloning ?

Core Java

^{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 cloning}

Q2429. How will you implement your own custom hashmap and linkedlist ?

Data Structure

^{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}

Q2430. Why does an array index starts at 0 and not 1 ?

Data Structure

Ans. The array index starts with 0 because program locates an element using the expression ( BaseAddress + ( Index * size of array Element ), where index is used as an offset. As the starting address is actually the address of first element, the index of first element is used as 0 and so on.

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

_{Like Discuss Correct / Improve}

Q2431. Why does an array need continuous memory locations and not Linked List ?

Data Structure

Ans. Array needs continuous memory location because it need to provide random access of it's elements which is not required for Linked List.

Array index acts as an offset from the base address and hence can retrieve the respective element using the expression Base Address + ( Index * Element Size ). This expression could only hold true if the elements are in continuous memory location.

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

_{Like Discuss Correct / Improve}

Q2432. What is the difference between dynamic programming and the brute force algorithm?

Algorithm

^{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}

Q2433. Design a Program to clone an object and all it's children.

Design

^{This question was recently asked at 'Bloomberg'.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 code coding cloning design pattern cloning design pattern Asked in 1 Companies}

Q2434. Tell something about Dependency Injection and it's drawbacks. In which situation, you may not like to use dependency injection ?

Design

^{This question was recently asked at 'Bloomberg'.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 dependency injection Asked in 1 Companies}

Q2435. What is setter injection ?

Spring

Ans. Setter Injection in Spring is a type of dependency injection in which the framework injects the dependent objects into the client using a setter method.

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

_{Like Discuss Correct / Improve setter injection dependency injection Asked in 2 Companies}

Q2436. Difference between final and finally

Core Java

Ans. final can be used for variables , methods and class. A final variable cannot be changed , a final method cannot be overridden , a final class cannot be inherited.

Finally is a block which is used after Try and catch, a finally block is always executed.

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

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

Q2437. Given a String with letters , numbers and special characters , extract Tokens from it. The rules for Token extraction are ac follows

1. Should for token of all characters till a number or special character is found
2. Should form token of all numbers till a character or special character is found
3. Special character in itself is a token
4. Ignore white spaces

For example - Bob Said "He is here"

should result in

Bob A
Said A
" S
He A
is A
here A
" S

where a is specifying alphabet and S as special character

Design

^{This question was recently asked at 'Bloomberg'.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 code coding string Asked in 1 Companies}

Q2438. Design a Whats app like messaging application.

architecture

^{This question was recently asked at 'Bloomberg'.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}

Q2439. What is immutability and What are it's disadvantages ?

Design

^{This question was recently asked at 'Bloomberg'.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 immutable immutability objects immutability Asked in 1 Companies}

Q2440. Can you explain any of your project bug for which you had to struggle a lot ?

General

^{This question was recently asked at 'Bloomberg'.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}

Q2441. What will happen if there is an exception in Java finally block ?

Core Java

Ans. The regular behavior of exception handling will occur. It will look for any immediate catch handler and if none is provided, it would be transmitted to the callers until a catch handler is found or it's out of main function.

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

_{Like Discuss Correct / Improve exceptions finally}

Q2442. What is the default execution method in Java?

Core Java

Ans. public static void main(String[] args)

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

_{Like Discuss Correct / Improve main method}

Q2443. Can methods without a return type be declared in Java? Is there a difference between void return type and no return type ?

Core Java

^{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}

Q2444. Difference between sleep() and Wait()

Operating System

^{This question was recently asked at 'PegaSystems'.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}

Q2445. how is the internal code for the "volatile" implemented ?

Core Java

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

Q2446. Design database schema for Facebook like application.

Database

^{This question was recently asked at 'Symantec'.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 database design Asked in 1 Companies expert}

Q2447. How Bitly shortens the URL ?

Web

^{This question was recently asked at 'Symantec'.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 web application url Asked in 1 Companies rare}

Q2448. Write Java code that would cause deadlock ?

Core Java

Ans. https://howtodoinjava.com/java/multi-threading/writing-a-deadlock-and-resolving-in-java/

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

_{Like Discuss Correct / Improve multithreading threads deadlock Asked in 1 Companies intermediate}

Q2449. How would you design a Thread Pool ?

Design

Ans. By using Executor Framework , we can create Thread pool

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

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

Q2450. Suppose you have 8 balls, one of them is either have more/less weight, In how many least possible iterations would you find that ball?

Design

^{This question was recently asked at 'Symantec'.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 puzzle design Asked in 1 Companies}

Search Interview Questions

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