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Technical Lead Java Interview Questions

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18,722 technical lead java interview questions shared by candidates

They asked about: HashMap and finding vowels in my name ConcurrentHashMap and hash functions Difference between == and equals in OOP SQL joins and writing a query for the second highest value SQL query to change the column name in the SELECT output (e.g., SELECT id AS number)
avatar

Java Devloper- Entry Level

Interviewed at Emgage

4.5★
Aug 13, 2025

They asked about: HashMap and finding vowels in my name ConcurrentHashMap and hash functions Difference between == and equals in OOP SQL joins and writing a query for the second highest value SQL query to change the column name in the SELECT output (e.g., SELECT id AS number)

In the final practical round at their Ahmedabad office, since my advanced Java knowledge was weak, I was offered a support role, so these tasks were for the support position. I was given four tasks: Make a computer start and run specific code automatically without manual startup. Inspect their website (using the password provided) and find errors, then export them into an Excel or Word file. Use Postman to fetch API data. Write 50 Linux commands. They allowed the use of ChatGPT or other tools, and the team, including the HR and CTO, was very friendly and supportive during the process.
avatar

Java Devloper- Entry Level

Interviewed at Emgage

4.5★
Aug 13, 2025

In the final practical round at their Ahmedabad office, since my advanced Java knowledge was weak, I was offered a support role, so these tasks were for the support position. I was given four tasks: Make a computer start and run specific code automatically without manual startup. Inspect their website (using the password provided) and find errors, then export them into an Excel or Word file. Use Postman to fetch API data. Write 50 Linux commands. They allowed the use of ChatGPT or other tools, and the team, including the HR and CTO, was very friendly and supportive during the process.

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