Micro optimizations in Java. Good, nice and slow Enum

Micro optimizations in Java. Good, nice and slow Enum

Enums are crucial part of every application larger than “Hello World“. We use them everywhere. They are actually very useful: they restrict the input, allow you to compare the values by the reference, provide compile-time checks, and make the code easier to read.

Enums are crucial part of every application larger than “Hello World“. We use them everywhere. They are actually very useful: they restrict the input, allow you to compare the values by the reference, provide compile-time checks, and make the code easier to read. However, using Enums has a few performance downsides. And we’ll review them in this post.

(Please consider all the code below from the point of performance)

(Please do not focus on numbers, they are just examples to prove the point)

enumeration performance technology programming java

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