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Java 8 new features

Lambda expressions.
Functional interfaces. (Supplier, Consumer, Predicate, Function are predefined functional interfaces).
Streams API.
Default and static methods in interfaces.
Method and constructor references using double colon (::).
Date and Time API (Joda API).
Optional class.
Nashorn javascript engine.

Main objectives of Java 8-

To simplify programming i.e. write more concise code.
To enable functional programming in Java (using lambda expressions).
To get benefits of parallel programming in Java (using parallel streams).

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