Hexaware Technologies Software Engineer Intern Interview Questions and Answers

Q1. What is Dependency Injection?
Ans. 
Dependency Injection is a design pattern in which components are given their dependencies rather than creating them internally.
• Allows for easier testing by providing mock dependencies

• Promotes loose coupling between components

• Improves code reusability and maintainability

• Examples: Constructor injection, Setter injection, Interface injection
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Q2. How to handle exception in java
Ans. 
In Java, exceptions can be handled using try-catch blocks to catch and handle specific exceptions.
• Use try-catch blocks to catch exceptions and handle them gracefully

• Use multiple catch blocks to handle different types of exceptions

• Use finally block to execute code regardless of whether an exception is thrown or not

• Throw custom exceptions using throw keyword
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Q1. In Java8, different between flatmap and map
Ans. 
map transforms each element in a stream, while flatMap transforms each element into multiple elements
• map applies a function to each element in a stream and returns a new stream of the results

• flatMap applies a function that returns a stream for each element in the original stream, then flattens the streams into a single stream

• Example: map - stream.map(x -> x * x), flatMap - stream.flatMap(str -> Arrays.stream(str.split(
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Q2. How to handle the ConcureentModificationException
Ans. 
ConcurrentModificationException occurs when a collection is modified while iterating over it.
• Use Iterator to iterate over the collection instead of foreach loop.

• If modification is necessary, use Iterator's remove() method instead of collection's remove() method.

• Consider using synchronized collections or ConcurrentHashMap to avoid ConcurrentModificationException.
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90 min test containing verbal, Quantitative aptitude and question based on diagrams

Q1. Which programming language will you prefer?
Ans. 
I prefer programming languages like Python and Java for their versatility and widespread use in the industry.
• I prefer Python for its simplicity, readability, and vast libraries for various tasks.

• I also like Java for its strong typing, object-oriented approach, and cross-platform compatibility.

• I am open to learning new languages as needed for specific projects or tasks.
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Q2. Question based on projects and internships
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Q1. Generative AI basics like chatgpt, Gemini etc
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Q2. Little bit same like first round about programming languages and databases
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Q1. Java questions and basics of testing
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Basic aptitude questions held online with their portal

Broad coding and basic oops

Q1. About hr questions
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BASIC TO MODERATE questions on there. & sectional time was given.

There was a communication round. Some basic English Grammer and 5 small topic was given. you have to say on those 5 topics within 2mins each. This was Easy level.

Q1. Some qst based on the programming language you are comfortable in. Then basic DBMS qst are there. And based on your final year project.
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Q1. Basic HR qst like introduce yourself, your skills, strenth & weakness, and willing to relocate or not.
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It was a comprehensive aptitude & reasoning exam

You have to be very good at speaking to clear this round.

Tow medium hard level coding questions

Q1. Approximate 1 hr one to one tech interview
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Q2. Topic was DSA specially 2d array and tree.
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Q1. They asked multiple puzzles and situation based questions.
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Q2. Company work culture and future benefits were discussed in this round
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Q1. It was a simple managerial round . don't panic just answer gently
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