Hexaware Technologies Software Engineer Interview Questions, Process, and Tips

1 Hour Coding Challenge

Q1. What is a semaphore ?
Ans. 
A semaphore is a synchronization construct used to control access to a shared resource by multiple processes or threads.
• Semaphores can have an integer value representing the number of available resources.

• They can be used to prevent race conditions and ensure mutual exclusion.

• Operations on semaphores include wait (P) and signal (V).
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Q2. How do you process multithreads in java ?
Ans. 
In Java, multithreading can be processed using the Thread class or implementing the Runnable interface.
• Create a new thread by extending the Thread class or implementing the Runnable interface.

• Start the thread using the start() method.

• Use synchronization mechanisms like synchronized blocks or locks to handle shared resources safely.

• Join threads to wait for them to finish execution.

• Use thread pools for managing multiple
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Q1. Find the SQL query to find duplicate in table
Ans. 
Use a SQL query with GROUP BY and HAVING clause to find duplicates in a table.
• Use GROUP BY to group rows with the same values together

• Use HAVING COUNT(*) > 1 to filter out non-duplicate rows

• Select the columns you want to check for duplicates in the SELECT statement
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Q2. Display department wise salary in Java streams
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Q1. Basics of c# and mvc framework
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Aptitude questions and answers with detailed explanations for your competitive examinations, placement interviews, and various entrance tests.

Q1. Aptitude questions and answers with detailed explanations for your competitive examinations, placement interviews, and various entrance tests.
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Q2. Why should i hire you?
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Q3. What is weakness? They ask about that
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Easy round and mcqs were there and passed it

Coding round with the interviewer and mostly data structure

Q1. Hr have the offer. And few questions like location and offers
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Q1. Basic interview questions
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Q2. Java 8 features
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Simple logical reasoning maths algorithim coding java output and

I dont know but simply bold and anwer coearly