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Intellect Design Arena Java Developer Interview Questions and Answers

Updated 27 Nov 2024

18 Interview questions

A Java Developer was asked 7mo ago
Q. Write an SQL query to find the 3rd highest salary of an employee.
Ans. 

To find the 3rd highest salary, use SQL queries with subqueries or the DISTINCT keyword.

  • Use the DISTINCT keyword to eliminate duplicates: SELECT DISTINCT salary FROM employees ORDER BY salary DESC LIMIT 2, 1;

  • Alternatively, use a subquery: SELECT MAX(salary) FROM employees WHERE salary < (SELECT MAX(salary) FROM employees WHERE salary < (SELECT MAX(salary) FROM employees));

  • Another approach is using ROW_NUMBER...

A Java Developer was asked 7mo ago
Q. How do you store file data in a database?
Ans. 

Store file data in a database using Java by reading the file, converting it to a suitable format, and executing an SQL insert.

  • Read the file using FileInputStream or BufferedReader.

  • Convert the file data to a byte array for binary files or String for text files.

  • Use JDBC to connect to the database.

  • Prepare an SQL statement to insert the data into the appropriate table.

  • Execute the statement and handle exceptions.

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A Java Developer was asked 7mo ago
Q. How does JDBC work?
Ans. 

JDBC (Java Database Connectivity) is an API that enables Java applications to interact with databases using SQL.

  • JDBC provides a standard interface for connecting to databases.

  • It consists of two main packages: java.sql and javax.sql.

  • JDBC drivers are required to connect to different databases (e.g., MySQL, Oracle).

  • Example of establishing a connection: DriverManager.getConnection(url, user, password).

  • JDBC supports ex...

A Java Developer was asked 8mo ago
Q. What are the differences between HashSet and Hashtable?
Ans. 

HashSet is an unordered collection of unique elements, while Hashtable is a synchronized collection of key/value pairs.

  • HashSet does not allow duplicate elements, while Hashtable does not allow duplicate keys.

  • HashSet does not maintain insertion order, while Hashtable does not guarantee any order.

  • HashSet allows null values, while Hashtable does not allow null keys or values.

A Java Developer was asked 8mo ago
Q. Write a Java program to find the duplicate in Array
Ans. 

Java program to find duplicates in an array of strings

  • Create a HashSet to store unique elements

  • Iterate through the array and check if element is already in the HashSet

  • If element is already in the HashSet, it is a duplicate

A Java Developer was asked 8mo ago
Q. What are the differences between Collection and Collections in Java?
Ans. 

Collection is an interface in Java that represents a group of objects, while Collections is a utility class that contains static methods for operating on collections.

  • Collection is an interface in Java that represents a group of objects.

  • Collections is a utility class in Java that contains static methods for operating on collections.

  • Example: List<String> list = new ArrayList<>(); Collection<String>...

A Java Developer was asked
Q. How can you optimize the performance of an application?
Ans. 

Optimizing performance involves identifying bottlenecks and implementing efficient solutions.

  • Identify and address any inefficient algorithms or data structures

  • Optimize database queries and indexing

  • Implement caching mechanisms to reduce redundant computations

  • Use profiling tools to identify performance bottlenecks

  • Consider parallel processing or asynchronous operations for resource-intensive tasks

Are these interview questions helpful?
A Java Developer was asked
Q. How do you secure our application?
Ans. 

To give security to our application, we can implement various measures such as encryption, authentication, authorization, input validation, and regular security audits.

  • Implement encryption to protect sensitive data, such as using SSL/TLS for secure communication.

  • Use authentication mechanisms like OAuth, JWT, or multi-factor authentication to verify the identity of users.

  • Implement authorization to control access to...

A Java Developer was asked
Q. Create an array and sort the elements in descending order.
Ans. 

Create and sort an array of strings in descending order

  • Create an array of strings

  • Use Arrays.sort() method with Collections.reverseOrder() comparator to sort in descending order

A Java Developer was asked
Q. Create an array and add the array elements.
Ans. 

Create an array of strings and add the array

  • Declare an array of strings

  • Initialize the array with values

  • Use a loop to add the values to the array

Intellect Design Arena Java Developer Interview Experiences

14 interviews found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Recruitment Consulltant and was interviewed in Sep 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Difference between hashset and hashtable
  • Q2. Collection vs Collections
Round 2 - Technical 

(2 Questions)

  • Q1. SQL query related questions
  • Q2. Write a Java program to find the duplicate in Array

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Jun 2024. There was 1 interview round.

Round 1 - Technical 

(5 Questions)

  • Q1. Comparable and comparator
  • Q2. Instance and local variable
  • Q3. Abstract and interface
  • Q4. Constructor and Methods
  • Q5. Http methods like post,get,put,delete

Interview Preparation Tips

Topics to prepare for Intellect Design Arena Java Developer interview:
  • Core java
  • Spring
  • Postman
Interview preparation tips for other job seekers - Gone through the basic java .and my final interview they asked about my project flow and asked questions related to springboot annotations
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in Apr 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. How to optimize the performance if an application
  • Ans. 

    Optimizing performance involves identifying bottlenecks and implementing efficient solutions.

    • Identify and address any inefficient algorithms or data structures

    • Optimize database queries and indexing

    • Implement caching mechanisms to reduce redundant computations

    • Use profiling tools to identify performance bottlenecks

    • Consider parallel processing or asynchronous operations for resource-intensive tasks

  • Answered by AI
  • Q2. How to give security to our application

Interview Preparation Tips

Interview preparation tips for other job seekers - Just speak with confidence and if you dont know the answer just tell them you will go through it.

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Nov 2023. There were 4 interview rounds.

Round 1 - Aptitude Test 

Basic CS aptitude question

Round 2 - Coding Test 

2 questions from Java and 2 questions from SQL, Easy to Medium Level

Round 3 - Group Discussion 

They let us choose our topic , We have to speak on that topic for few minutes , they will be checking the english fluency and presentation

Round 4 - Technical 

(3 Questions)

  • Q1. Technical Round I got lucky; they asked me basic java questions and Basic SQL theory
  • Q2. Create an array and sort them in descending order
  • Q3. Create an array and add the array

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on Java fundamentals like OOPS and Basic DSA; also prepare SQL for coding and technical interviews

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in Apr 2024. There were 2 interview rounds.

Round 1 - Coding Test 

Occurance of every elements in string

Round 2 - Technical 

(1 Question)

  • Q1. All basic question core java

Java Developer Interview Questions & Answers

user image HARSH GUPTA 20BCE1310

posted on 24 Oct 2023

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Group Discussion 

Pretty Straight forward, topic : "Is corporate work a new form of slavery?"

Round 3 - Technical 

(1 Question)

  • Q1. String Core Java questions, OOPs, JDBC and java related project work

Interview Preparation Tips

Interview preparation tips for other job seekers - Get hold of strong java concepts

Java Developer Interview Questions & Answers

user image Sujata Bangar

posted on 27 Nov 2024

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Nov 2023. There were 3 interview rounds.

Round 1 - Aptitude Test 

English and reasoning

Round 2 - Technical 

(5 Questions)

  • Q1. Core Java questions
  • Q2. SQL query and project details which we did
  • Q3. What jdbc how it's work
  • Ans. 

    JDBC (Java Database Connectivity) is an API that enables Java applications to interact with databases using SQL.

    • JDBC provides a standard interface for connecting to databases.

    • It consists of two main packages: java.sql and javax.sql.

    • JDBC drivers are required to connect to different databases (e.g., MySQL, Oracle).

    • Example of establishing a connection: DriverManager.getConnection(url, user, password).

    • JDBC supports executi...

  • Answered by AI
  • Q4. How to store file data to DB
  • Ans. 

    Store file data in a database using Java by reading the file, converting it to a suitable format, and executing an SQL insert.

    • Read the file using FileInputStream or BufferedReader.

    • Convert the file data to a byte array for binary files or String for text files.

    • Use JDBC to connect to the database.

    • Prepare an SQL statement to insert the data into the appropriate table.

    • Execute the statement and handle exceptions.

  • Answered by AI
  • Q5. Sql query for 3rd highest salary of employee
Round 3 - Group Discussion 

Economic growth vs environment impact

Interview Preparation Tips

Topics to prepare for Intellect Design Arena Java Developer interview:
  • Core Java
  • Java8
  • Stream api
  • Data Structures
  • SQL query
  • Project
Interview preparation tips for other job seekers - If u looking for good work life balance then don't join here.

I applied via Naukri.com and was interviewed in Jul 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. What is the difference between collection and collections in core java
  • Q2. What is Constructor in core Java

Interview Preparation Tips

Interview preparation tips for other job seekers - Get all basic details of Core java and SqL. Then you should have good knowledge about Spring , spring boot and angular

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Feb 2023. There were 3 interview rounds.

Round 1 - Aptitude Test 

MCQ based on core Java and collection

Round 2 - Technical 

(2 Questions)

  • Q1. Technical round based on core Java , collection, map functionality, encapsulation,
  • Q2. Write code on live example based on method overloading concept
Round 3 - HR 

(1 Question)

  • Q1. Job Role and salary discussion
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. As per project requirements
Round 3 - HR 

(1 Question)

  • Q1. Project discussion and salary discussion

Interview Preparation Tips

Interview preparation tips for other job seekers - My side both rounds are good,technical questions are also good and my answers are also good.

Top trending discussions

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Interview Tips & Stories
2w
toobluntforu
·
works at
Cvent
Can speak English, can’t deliver in interviews
I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me
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Intellect Design Arena Interview FAQs

How many rounds are there in Intellect Design Arena Java Developer interview?
Intellect Design Arena interview process usually has 2-3 rounds. The most common rounds in the Intellect Design Arena interview process are Technical, Aptitude Test and Coding Test.
How to prepare for Intellect Design Arena Java Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Intellect Design Arena. The most common topics and skills that interviewers at Intellect Design Arena expect are Java, J2Ee, Spring Boot, Microservices and Spring.
What are the top questions asked in Intellect Design Arena Java Developer interview?

Some of the top questions asked at the Intellect Design Arena Java Developer interview -

  1. What is the difference between Abstract class and Interface in terms of Java...read more
  2. What is the difference between collection and collections in core j...read more
  3. Write a program to remove duplicate elements from an arr...read more
What are the most common questions asked in Intellect Design Arena Java Developer HR round?

The most common HR questions asked in Intellect Design Arena Java Developer interview are -

  1. Why are you looking for a chan...read more
  2. What are your strengths and weakness...read more
  3. Where do you see yourself in 5 yea...read more

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Overall Interview Experience Rating

3.9/5

based on 9 interview experiences

Difficulty level

Moderate 100%

Duration

Less than 2 weeks 57%
2-4 weeks 29%
4-6 weeks 14%
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Intellect Design Arena Java Developer Salary
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₹4.9 L/yr - ₹11 L/yr
25% more than the average Java Developer Salary in India
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based on 35 reviews

3.1/5

Rating in categories

3.0

Skill development

2.9

Work-life balance

2.9

Salary

3.5

Job security

3.2

Company culture

2.4

Promotions

3.0

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