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1. Is Groovy compiled or interpreted? 2. How do you stop a cron job? 3. What is the difference between Java and Groovy? 4. What is the difference between UNION and UNION ALL in SQL? 5. What are the types of SQL joins? 6. What is the difference between Heap and Stack memory? 7. What is the Singleton pattern? 8. 8. How would you implement a method sum(x, y) without using built-in operations or the '+' operator?
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Senior Java Developer

Interviewed at Santander

3.8★
Oct 27, 2025

1. Is Groovy compiled or interpreted? 2. How do you stop a cron job? 3. What is the difference between Java and Groovy? 4. What is the difference between UNION and UNION ALL in SQL? 5. What are the types of SQL joins? 6. What is the difference between Heap and Stack memory? 7. What is the Singleton pattern? 8. 8. How would you implement a method sum(x, y) without using built-in operations or the '+' operator?

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