How to create constants in Java language

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For the creation of constants:

* Use the keyword "static" and "final" to create a constant
* Each constant has a type (int, float, ...) associated

And follow the following recommendations.

* Create all the constants of the application in a single separate file.
* Use the capital letters to call the constants
* If the name of the constant is composed, use the underscore to divide the words

Note that a constant is an immutable variable.