How to use parallel processing in Java 8


In Java 8 the parallelism is almost for free and straight forward. Check out the examples given below.

Here is an example of multithreading in older Java world (no reason to read all of it):

The output:


Now let’s see how the same parallel processing can be implementedĀ inĀ Java 8:

The key point here is parallelStream() and the output is the following:



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