Java 8 is a version of the Java programming language that was released by Oracle in March 2014. It introduced several new features and enhancements to the language, including:

  1. Lambda expressions: This feature allows developers to write more concise and functional-style code by treating functions as first-class citizens.

  2. Stream API: The Stream API provides a way to process collections of data in a declarative manner, allowing for easier parallel processing and improved performance.

  3. Default methods in interfaces: Interfaces can now have default method implementations, allowing for backward compatibility when adding new methods to existing interfaces.

  4. Optional class: The Optional class provides a way to handle null values more effectively, reducing the chances of null pointer exceptions.

  5. Date and Time API: The new Date and Time API provides a more comprehensive and flexible way to work with dates and times, addressing some of the shortcomings of the old java.util.Date and java.util.Calendar classes.

  6. Functional interfaces: Java 8 introduced several new functional interfaces, such as Predicate, Function, and Consumer, which provide a way to work with lambda expressions and functional programming concepts.

These are just some of the major features introduced in Java 8. Overall, Java 8 aimed to make the language more expressive, concise, and efficient for developers.


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