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|Java - Interview Questions and Answers|
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|Like Discuss Correct / Improve  synchronization  concurrency  java 8  java8 Asked in 1 Companies|
|Difference between final and effectively final ? Why is effectively final even required ?|
|What is StringJoiner ?|
|Why can't we have diamond problem with interfaces ?|
|What is the use of Optional ?|
|Is it ok to use optional everywhere just to get over nullpointerexception ?|
|What are new features introduced with Java 8 ?|
|What is the @FunctionalInterface annotation ?|
|Difference between DoubleSummaryStatistics , IntSummaryStatistics and LongSummaryStatistics ?|
|Name few "Optional" classes introduced with Java 8 ?|
|What are the changes in Java.io in Java 8 ?|