What are the new features in Java 8?

Question

Accepted Answer

Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and the new Date and Time API.

Lambda expressions: Allow you to treat functionality as a method argument.
Functional interfaces: Interfaces with a single abstract method, used for lambda expressions.
Streams: Provide a new abstraction to work with sequences of elements.
Date and Time API: Improved API for handling date and time operations.

Accepted Answer

Lambda Expressions: Allows you to write functions in a more concise and functional style.

Functional Interfaces: Interfaces with a single abstract method, used extensively with lambda expressions (e.g., Consumer, Predicate, Supplier).

Streams: A powerful abstraction for working with sequences of data, supporting map, filter, reduce, and other operations.

Default Methods: Methods in interfaces with default implementations to add new methods to existing interfaces without breaking compatibility.

Method References: A shorthand notation for referring to methods by their names.

Optional: A container object which may or may not contain a non-null value, reducingthe likelihood of null pointer exceptions.

New Date and Time API: The java.time package provides comprehensive date and time functionality, overcoming limitations of the old Date and Calendar classes.

Nashorn JavaScript Engine: A lightweight, high-performance JavaScript engine that allows you to run JavaScript code within Java applications.

Accepted Answer

Some of the important Java 8 features are;

forEach() method in Iterable interface
default and static methods in Interfaces
Functional Interfaces and Lambda Expressions
Java Stream API for Bulk Data Operations on Collections
Java Time API
Collection API improvements
Concurrency API improvements
Java IO improvements

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