Java 8 Interview Questions

Q- What are the new features introduced in Java 8?

Q- What are the characteristics of Java 8 lambda expressions?

Q- Why lambda expression is to be sed?

Q- What kind of variable you can access in the lambda expression?

Q- What are the method references?

Q- What are functional interfaces?

Q- Explain the purpose of all different types of functional interfaces?

Q- What are default methods? How to call them? 

Q- What are static default methods? Hw to call them?

Q- What is Streams in Java 8?

Q- What is stream pipelining in Java 8?

Q- How lambda expression and functional interfaces are related?

Q- Can you create your own functional interface?

Q- What is Optional? Why and How can you use it?

Q- What is the difference between Predicate and Function?   

Q- Prefer Lambdas to anonymous classes?

Q- Prefer method references to lambdas? 

Q- Use caution when making streams parallel?

Q- Prefer Collection to Stream as a return type?

Q- Prefer side-effect free functions in Streams?

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