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Interview Questions and Answers - Order By Newest

Q2331. How is the culture at your current company ?

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Q2332. What value you would like to see in an employee if you own a company ?

General

Ans. The intent of this question is to see what values as a employee you have. So answer this cautiously as they will try to judge you on the basis of this answer.

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Q2333. What is garbage collection ?

Core Java

Ans. The garbage collection is a facility wherein a program runs on the Java Virtual Machine which gets rid of objects, which are not being used by a Java application anymore. It is a form of automatic memory management and recollection.

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Q2334. Can we change return type of Overridden method ?

Core Java

Ans. Yes, we can change return type of overridden method in child class but child's return type should be sub-type of parent's return type.

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Q2335. Find Intersection/union between two arrays.

Core Java

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Q2336. Find unique values between two arrays using single for loop ?

Core Java

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Q2337. Make "I Know Java" as "I Java Know" without using any inbuilt functions.

Core Java

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Q2338. What is the biggest learning in any of your previous jobs ?

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Q2339. What is ViewResolver in Spring MVC ?

Spring

Ans. View resolver is used to get view name from Controller and resolve the next view page

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Q2340. Given the Phone keys mapping between numbers and characters as following

1 - a,b,c
2 - d,e,f

and so on, Write a Program that takes the integer as input and then print all possible combinations of characters matching those integers.

For example - 12 should return

ad,ae,af,bd,be,bf,cd,ce,cf

Design

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Q2341. Given a linked list with 0 to n node references , Flaten the Linked list

Algorithm

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Q2342. Can you explain the recent bug in your project and how you fixed it.

General

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Q2343. What is the structure of your team ?

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Q2344. Find out the max and min number from given array

Core Java

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Q2345. Math.round method rounds the decimal to an integer by stripping off the decimal places. How can we use the same method to keep only 2 decimal places

For example -

Math.round(12.3456) will return 12. What should we do to get 12.34 without using any other class or method.

Core Java

Ans. We can multiply the value by 100 and then use Math.round on that and then divide the result by 100

For example -

(Math.round(12.3456 * 100)) / 100

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Q2346. What is the difference between round and scale method of BigDecimal ?

Core Java

Ans. Round method would round it to integer places irrespective of if it's decimal places or not whereas scale would only round the decimal places.

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Q2347. What was the most complex problem you faced in your career and how you fixed it ?

General

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Q2348. Given a comma separated string that signifies the current position in 4 * 4 tic tac toes game, write a program that gives the result of the game - If anyone win and if yes then who and if the game is still open.

For example - x,0,x,x,x,0,0,0,0,x,0,x means that 00 index has x, 01 has 0 and so on with x(3,3) has last element x

Design

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Q2349. Why do we need to initialize Spring context ?

Spring

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Q2350. What are the different type of encoding you have used ?

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Q2351. Does it make sense to send someone's social security number as path parm in a get request ?

Design

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Q2352. If a stack is implemented using an array, which end (head or tail) should represent the top ?

Data Structure

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Q2353. If a stack is implemented using linkedlist, which end (head or tail) should represent the top ?

Data Structure

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Q2354. Describe how a queue is usually created using sequential allocation.

Data Structure

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Q2355. What is the "multiplicative congruence" method for determining where an element belongs in a hash table ?

Data Structure

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Q2356. What is meant by Loosely coupled database design ?

Design

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Q2357. Which of the Java concepts do you believe have become less relevant with time ?

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Q2358. Which of the Core Java functions / packages / concept do you believe have become irrelevant in today's market ?

Core Java

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Q2359. Which spring boot version are you working with ?

Spring Boot

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Q2360. Which development methodology do you use ?

General

Ans. http://www.itinfo.am/eng/software-development-methodologies/

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