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6,029 java senior interview questions shared by candidates

1. How Java memory works 2. What we get NullPointerException 3. Program to get factorial using iteration and recursion(discussion around edge case writing code etc.) 4. Explain Volatile, Synchronized & AtomicInteger 5. Why use kafka vs SQS 6. Performance optimization

Senior Software Engineer - JAVA

Interviewed at STG Labs

4.5★
Jun 8, 2026

1. How Java memory works 2. What we get NullPointerException 3. Program to get factorial using iteration and recursion(discussion around edge case writing code etc.) 4. Explain Volatile, Synchronized & AtomicInteger 5. Why use kafka vs SQS 6. Performance optimization

1. Why do you want to join Publicis Sapient? 2. Where do you see yourself in the next 5 years? 3. Technical questions from projects in previous organization 4. Multi-threading, concurrency, parallel programming, Spring framework, and Core Java concepts
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Senior Java Developer

Interviewed at Publicis Sapient

3.4★
Jul 7, 2021

1. Why do you want to join Publicis Sapient? 2. Where do you see yourself in the next 5 years? 3. Technical questions from projects in previous organization 4. Multi-threading, concurrency, parallel programming, Spring framework, and Core Java concepts

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