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Java 8
Interview questions on Java 8.
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1. What is a Functional Interface in Java?
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2. Which version of Java do you like most and why? Why do we say Java 8 is the baseline for functional programming approach?
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3. What is Optional? What does it do? How does it help to avoid NullPointerException?
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4. What is a Functional Interface? Can I keep default methods in it?
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5. What is terminal and intermediate operation in Stream API?
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6. How flatMap differs from map?
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7. 10. What is method reference and how can you use it for your methods?
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8. I have a list of Employees. How to avoid duplicates?
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9. What are the enhancements in Java Date Time APIs in Java 8?
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10. What are the enhancements in Java Date/Time APIs in Java 8?
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