Gain insights into Java 8's new features: lambdas, Stream API, Functional Interfaces, Collections improvements, Memory Management, and Date & Time API to enhance productivity and code quality.

Java 8 has introduced a ton of features and enhancements to boost developer productivity, while making your code faster, more concise, and more readable. 
In this course, you will learn about lambdas, Java Stream API, Functional Interfaces, as well as lots of other new improvements related to Collections, Memory Management, Date & Time API. 
After completing this course, you’ll be well versed in all the functionality of Java 8 and be ready to utilize these new features in your own code.

Java 8 for Experienced Developers: Lambdas, Stream API & Beyond

The addition of the `Stream` API was one of the major features added to Java 8. A `Stream` in Java can be defined as a sequence of elements from a source that supports aggregate operations on them. The source here refers to collections or arrays that provide data to a stream.
	
A few important points about streams are:

1. A stream is not a data structure itself. It is a bunch of operations applied to a source.  The source can be collections, arrays or I/O channels.

2. Streams don’t change the original data structure. 
3. There can be zero or more intermediate operations that transform a stream into another stream.
4. Each intermediate operation is lazily executed (This will be discussed later).
5. Terminal operations produce the result of the stream.

# Stream creation
Streams can be created from different element sources, e.g., a collection or an array with the help of `stream()` and `of()` methods. Below are the different ways to create a stream.

## `a) Stream.of(v1, v2, v3….)`

In the below example, we are creating a stream of integers at **line 7** using the `Stream.of()` method.

Let's Begin

Taste of lambdas

Stream API

Java 8 Collections Improvements

Java 8 Concurrency API Improvements

Java Time API

Conclusion

Introduction