Interview Questions and Answers for 'T' | Search Interview Question

Interview Questions and Answers - Order By Newest

Q1901. When to use List, Set and Map in Java

Ans. I. If we want a Collection that does not store duplicate values, then we use a Set based collection.

II. If we want to frequently access elements operations based on an index value then we use a List based collection. E.g. ArrayList

III. If we want to maintain the insertion order of elements in a collection then we use a List based collection.

IV. For fast search operation based on a key, value pair, we use a HashMap based collection.

V. If we want to maintain the elements in a sorted order, then we use a TreeSet based collection.

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Q1902. Why do you want to leave your current job ?

General

Ans. The most effective and acceptable reasons for leaving your current job should be positive e.g. moving forward in your life or career

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Q1903. Do you like your work in current project ?

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Q1904. Which spring boot version are you working with ?

Spring Boot

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Q1905. How is the culture at your current company ?

general

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Q1906. 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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Q1907. 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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Q1908. Find Intersection/union between two arrays.

Core Java

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Q1909. Find unique values between two arrays using single for loop ?

Core Java

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Q1910. Make "I Know Java" as "I Java Know" without using any inbuilt functions.

Core Java

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Q1911. What is the biggest learning in any of your previous jobs ?

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Q1912. 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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Q1913. 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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Q1914. Given a linked list with 0 to n node references , Flaten the Linked list

Algorithm

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Q1915. Can you explain the recent bug in your project and how you fixed it.

General

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Q1916. What is the structure of your team ?

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Q1917. 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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Q1918. 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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Q1919. If a stack is implemented using an array, which end (head or tail) should represent the top ?

Data Structure

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Q1920. If a stack is implemented using linkedlist, which end (head or tail) should represent the top ?

Data Structure

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Q1921. Describe how a queue is usually created using sequential allocation.

Data Structure

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Q1922. What is the "multiplicative congruence" method for determining where an element belongs in a hash table ?

Data Structure

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Q1923. Which spring boot version are you working with ?

Spring Boot

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Q1924. Which development methodology do you use ?

General

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

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Q1925. Are you involved in architecture and design ?

General

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Q1926. What are you using AWS lambda for ?

Amazon Web Services (AWS)

Ans. We are using it for computation (EC2) , Storage (S3) and Database (RDS)

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Q1927. Are you involved in getting business requirements ?

General

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Q1928. What methodology and technology stack do you use ?

General

Ans. [Open Ended Answer]

Possible Answer - We are using Agile. We have daily standups, Bi weekly Backlog Grooming , Planning and Retrospective, We have a 2 week sprint and We use Jira for Scrum Management. We are using Java 8, Spring Boot, JSF , Apache Kafka , Soap as well as Rest Services.

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Q1929. Why you chose programming as your career ?

General

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Q1930. Explain your experience working on UI ?

General

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