More Java 17: An In-Depth Exploration of the Java Language and Its Features

© Kishori Sharan, Peter Späth 2021

K. Sharan, P. SpäthMore Java 17 https://doi.org/10.1007/978-1-4842-7135-3_6

6. Streams

Kishori Sharan¹   and Peter Späth²

(1)

Montgomery, AL, USA

(2)

Leipzig, Sachsen, Germany

 

In this chapter, you will learn:

• What streams are

• Differences between collections and streams

• How to create streams from different types of data sources

• How to represent an optional value using the Optional class

• Applying different types of operations on streams

• Collecting data from streams using collectors

• Grouping and partitioning a stream’s data

• Finding and matching data in streams

• How to work with parallel streams

All example programs in this chapter are members of a jdojo.streams module , as declared in Listing 6-1.

// module-info.java

module jdojo.streams ...