8000 java-8/src/com/learnJava8/streamsparallel at master · dmiller2117/java-8 · GitHub

Name		Name	Last commit message	Last commit date
parent directory ..
ParallelStreamBoxedExample.java		ParallelStreamBoxedExample.java
ParallelStreamExample.java		ParallelStreamExample.java
ParallelStreamExample1.java		ParallelStreamExample1.java
README.md		README.md
Sum.java		Sum.java
SumClient.java		SumClient.java

README.md

Stream Parallel Operations

What is a Parallel Stream?

Splits the source of the data into multiple parts
Process them parallelly.
Combine the result.

How to Create a Parallel Stream?

Sequential Stream:

IntStream.rangeClosed(1, 1000) .sum()

Parallel Stream:

IntStream.rangeClosed(1, 1000) .parallel() .sum()

How Parallel Stream works?

Parallel Streams use the Fork/Join framework that got introduced in Java 7

How many Threads are created?

Number of threads created == number of processors available in the machine

0