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|Interview Questions and Answers
|Rarely asked as default methods have been introduced with Java 8.
|Ans. No. Compiler will give error.
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|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 ?
|Name few "Optional" classes introduced with Java 8 ?
|What was the driving force to introduce default methods in Interfaces wef from Java 8 ?
|Is it ok to use optional everywhere just to get over nullpointerexception ?
|What is concurrent interface ?
|What are new features introduced with Java 8 ?
|What is the @FunctionalInterface annotation ?